First of all, for people who are looking to buy games on ebay, please please take the time to read my other guides, it will give you lots of information to straighten out those PAL & NTSC questions:
Ok, Lets move on to the main topic.
The Wii (pronounced as the pronoun "we," ) is a video game console released by Nintendo. The console was previously known by its project code name of Revolution, and is the successor to the Nintendo GameCube. Although Nintendo states that its console targets a broader demographic than that of Microsoft's Xbox 360 and Sony's PlayStation 3,as part of the seventh generation of gaming consoles it competes with the other two on some levels.
A distinguishing feature of the console is its wireless controller, the Wii Remote, which can be used as a handheld pointing device and can detect motion and rotation in three dimensions. Notable among the console's internal features is WiiConnect24, which enables it to receive messages and updates over the Internet while consuming very little electrical power.
Nintendo itself has released few technical specifics regarding the Wii system, but some key facts have leaked to the press. Known details include:
CPU: PowerPC based "Broadway" processor, made with a 90 nm SOI CMOS process, clocked at 729 MHz
88 MB main memory (24 MB "internal" 1T-SRAM integrated into graphics package, 64 MB "external" GDDR3 SDRAM)
3 MB GPU texture memory
Ports and peripheral capabilities:
Up to four Wii Remote controllers (connected wirelessly via Bluetooth) - five player capability using four Wii Remotes and one GameCube controller
One SD memory card slot
Two USB 2.0 ports
One Sensor Bar port
One accessory port on the bottom of the Wii Remote
Four Nintendo GameCube controller ports
Two Nintendo GameCube memory card ports
Mitsumi DWM-W004 WiFi 802.11b/g wireless module
Compatible with optional USB 2.0 to Ethernet LAN adaptor
512 MB built-in flash memory
Expansion available via SDcard memory, 2 GB maximum supported capacity
GameCube Memory Cards (for saving GCN games only)
Slot-loading disc drive compatible with 8 cm GameCube optical disc and 12 cm Wii Optical Disc
Mask ROM by Macronix
Up to 480p (PAL/NTSC) or 576i (PAL/SECAM), standard 4:3 and 16:9 anamorphic widescreen
Component (including Progressive scan), RGB SCART (PAL only), S-Video (NTSC only), composite output, or D-Terminal
Main: Stereo - Dolby Pro Logic II-capable
Controller: Built-in speaker
The operating system interface for the console is designed around the concept of television channels, with a Wii menu used to access them. Separate channels are graphically displayed in a grid, and are navigated using the pointer capability of the Wii Remote. There are eight primary channels: the Disc Channel, Mii Channel, News Channel, Forecast Channel, Photo Channel, Wii Shop Channel, Internet Channel and Virtual Console Channel(s). The Forecast Channel was released on December 19, 2006. A beta version of the Internet Channel was released on December 22, 2006 and is available for download on the Wii Shop Channel. The full version is to be released in March which will be free until June. After June a fee of 500 Wii Points will be required for purchase. The News Channel is announced to be released on January 27, 2007.
The Wii console is backward compatible with all Nintendo GameCube software and most GameCube peripherals. THIS MEANS THAT, YOU CAN BUY/PLAY ALL THE GAMECUBE GAMES RELEASED IN YOUR REGIONS FORMAT (PAL / NTSC), OR YOU CAN SELL YOUR GAMECUBE AND JUST KEEP THE GAMES, AND RUN IT ON THE WII. This backwards compatibility is achieved with the help of the slot-loading drive being able to accept GameCube discs, and a set of four GameCube controller ports and two Memory Card slots, concealed by flip-open panels. A GameCube controller is required to play GameCube games, as neither the Wii Remote nor the Classic Controller functions in this capacity. A GameCube memory card is also necessary if you want to save, as the Wii internal flash memory will not save GameCube games. Nintendo has stated that the console is not compatible with the GameCube modem adapter, broadband adapter, Game Boy Player, AV cable, or AC adaptor.
*NOTE* It is now confirmed that the latest version of the GAMECUBE freeloaders (Version: 1.0E) now works on the Wii (Firmware version 2.9 or less, if you did the whole internet update thing with the WII, then it will no longer work), so you can run oversea gamecube games on your local Wii system. There is now a WII freeloader for the Imported Wii games that allows you to play all oversea games ( Firmware 3.2 was tested and working), but it "may" be undone via a new firmware update if you have the Wii connected to the internet.
Softmod of a Wii also can give you the ability to play NTSC and Pal games, most common softmod is to take a Wii with firmware 3.1-4.3 and softmod it to enable it to read and play all NTSC and Pal games.
Nintendo DS connectivity
The Wii system supports wireless connectivity with the Nintendo DS. Shigeru Miyamoto said Nintendo was still working out when features using this connectivity would be available, but that it would be soon after the launch of the system, due to the popularity of the Nintendo DS. The connectivity allows the player to use functions like the Nintendo DS microphone and touchscreen as inputs for Wii games. The first example Nintendo has given of a game using Nintendo DS-Wii connectivity is that of Pokémon Battle Revolution. Players with either Pokémon Diamond or Pearl are able to play battles using their Diamond or Pearl Pokémon on Wii with the Nintendo DS as a controller.
It has also been confirmed that the Nintendo DS is able to play game demos downloaded from the console which they would receive from Nintendo, similar to a DS Download Station. The console is also able to expand Nintendo DS games.
The console features parental controls (with an update), prohibiting younger users from playing games with content considered unsuitable for their age level. When a Wii or Virtual Console game is attempted to be played, it reads the content rating encoded in the game data; if this rating is greater than the system's set age level the game will not load without a correct override password. However, the parental controls setting does not affect GameCube games.
European units mainly utilize the PEGI rating system, whereas North American units use the ESRB rating system. The Wii unit supports the native rating systems of many countries, including CERO in Japan, the USK in Germany, both the PEGI and BBFC in the United Kingdom and the OFLC in Australia and New Zealand.
The Wii unit is able to connect to the Internet through its built-in 802.11b/g Wi-Fi and through a USB-to-Ethernet adaptor, with both methods allowing players to access the established Nintendo WiFi Connection service. Nintendo has stated that the console implements standard Wi-Fi protocols. Wireless encryption by WEP, WPA (TKIP), WPA (AES), and WPA2 (AES) are supported. Just as for the Nintendo DS, Nintendo does not charge fees for playing via the service and the Friend Code system controls how players connect to one another. It is reported that only one Wii system code is required. This system also implements console-based software such as the Wii Message Board, for which a feature is being considered for alerting registered friends for the Wii Message Board about new games that have been purchased.
The service has several features for the console such as the Virtual Console, WiiConnect24 and Internet Channel. The console can also communicate and connect with other Wii systems through a self-generated wireless LAN, enabling local wireless multiplayer on different television sets. Battalion Wars 2 first demonstrated this feature, for non-split screen multiplayer between two or more televisions. Although the console features an online mode, Nintendo has not provided the programming tools for 3rd party developers yet, meaning that only first party Wii games are online so far.
The Wii firmware requires updates from time to time. As reported by IGN, it was discovered that to use the Online Channels, a firmware update was required. Some earlier produced units were reportedly shipped with older firmware, and had some problems. Most units, however, shipped with the latest version. A letter 'U', 'J', or 'E' follows the version number, signifying an NTSC US, NTSC Japan, or PAL region console.
For more infomation and advice regarding the Wii, just message me with ebay's inhouse message service, and I will get back to you ASAP.
References and resources taken from:
IGN, NINTENDO, WII, AND WIKIPEDIA.