if your planning on selling on ebay you have to follow there new rules link below...
Only one of each console can be listed per eBay account prior to the launch of the console (PS3 is expected to be available on 11/17/06, Wii on 11/19/06).
The seller must only accept payment through PayPal, and have at least 50 feedback with a 98% or greater positive rating so that they qualify for PayPal Buyer Protection.
The pre-sale item must be listed in the 3, 5, 7 or 10-day formats, and cannot use Buy It Now.
The listing must include a photo of your pre-order receipt in the description.
here is the link:
http://www2.ebay.com/aw/core/200610....06-10-24174743