With ebays new policy in June 2008 the only form of payment allowed will be thru paypal excluding pickups all my posted item/s will be sent registered with insurance as paypal will require proof that the item/s were posted.
Although this policy has been canned registered is still the best policy.
If a buyer makes a claim that they did not recieve their purchase and recieve the claim in thier favour. You lose your item/s plus the postage cost sending the item/s as well as the payment the buyer made all your ebay and paypal fees so it will pay to post everything registered or you will be out of pocket as well as your item/s that you sent.
So if sellers post item/s by regular post you will be open to fraud as you will not be able to prove you sent the item/s.
This method of posting will protect both seller and buyer.