Originally Posted by LambOfGod
Is it a generic brand PSU? If it is i would be worried, if not then i would feel comfortable.
You can retract bids on e-bay, he does not need to wait for someone to outbid him.
Agreed, but some times they aren't approved by Ebay and nonetheless that has a negative impact on his profile, but definitely not as bad as a Non-Paying Bidder Notice. But the way I see it, that card will sell high just from the activity in the first 18 hours, but if he is still the high bidder with two days left in the auction, then he might want to file a bid retraction.
EDIT: Check this link for the Bid Retraction Policy.