Hi all, I have a 17in iMac, Intel Core 2 Duo, and 1 GB RAM , and I went to PowerMax.com to see how much it could be traded in for. After contacting them I was given a quote for $500 with the original box, keyboard, mouse, and original discs. Now this sounds good right? Wrong. At PowerMax, in the used computer section, this SAME computer, stocks for $819.00 WITHOUT the keyboard, OS Discs, and with 10.4. Anybody here traded with PowerMax before? And what do you think of this?