MrsHoarder, there's no comeback from eBay, it's lip service.
Assuming you don't leave feedback (because that negates a future complaint) and the issue is within 90 days of purchase (because that's the time limit for complaint) and that the seller hasn't ceased trading or temporarily closed his account (because then eBay/Paypal cannot recover your monies directly from the seller on your behalf) and the item was correctly listed as used but two days after playing with it the screen goes on the blink (because it was correctly described as used, so any faults appearing after purchase are your responsibility), then sure, you're covered ;)
In the very, very fine smallprint of both eBay and Paypal (whom most people pay with nowadays on eBay) it does explain all that.
You can email or phone eBay with your complaint too but whoopie-doo all that will do for you. Ebay is a host venue, it's self-arbitrating, they clearly state they encourage users to work out issues between themselves. They will only refund where there's fault if it fits the very strict criteria, otherwise the issue is left to 'users to work out between themselves'.
None of this is assumed cynicism, it's all fact learnt the hard way over 10 years buying and selling on the site. Which is why I'm not buying a Touch from there! :) But don't let it put you off! Even knowing that sellers can acutally buy feedback to keep their reputation clean shouldn't put you off enjoying the bargains that can be had. Just bear in mind, most things are cheap for a reason, including used game systems!
'if you get yours from a trader on eBay, your consumer rights are protected by law'
This is correct along the following criteria : the seller must be business registered on eBay and have a verified Paypal account at time of trading and the purchase must comply with the distance selling laws. You can then take the seller to court and if you win, your court costs are reimbursed of course.