The power supply is from a series of Wintech oem rebranded Ultra power supplies (FSP/Ultra x2=Wintech's same design) which received horrible reviews (That one is the Ultra x2 which is the same as the LSP 750w but modular, from Wintech):
http://enthusiast.hardocp.com/article/2008/02/06/ultra_x2_extreme_edition_750w_power_supply/9
Asus M3n78-VM.... $45 max considering technology advances... There's better motherboards for the same price as the "new" price of this motherboard. Even if it was new I would appraise it at $60.
Phenom II x4 965 BE, this is probably going to retain the most value if you have a receipt that says it was bought 4 months ago. $170 shipped as long as it's in tip top "like new" shape. (No bent pins, no mistreated heatsink etc)
6gb of PC2-5300 DDR2.... Maximum of $60 for the whole 6gbs. I don't need to explain why... 667 mhz... $300 My laptop has 667 mhz ram...
GTX 260 216 is overpriced. Greedy nvidia never lower the price as it should have since the HD 4870 was seen hitting $130 and competing/beating the GTX 260 before it's disappearance. Now the HD 5770 competes with it but is far better due to less power usage, and newer technology. $120 shipped.
1TB Western Digital Black.... I already bought like 3 from craigslists for $50 a pop, new OEM sealed from two different people. I would estimate it's value at around $45~ shipped.
DVD burner= $23 shipped on newegg, brand new with 1 year warranty. Used DVD burner=$13-$15 shipped.
23" LG Flatron LCD.... Tough one, very tough. I would appraise it at $140~ if it comes with receipt/ box/ cables/etc... Anyone care to confirm $140 is fine ?[/i]
Keyboard= Free... just keep it OP or give it away with the whole setup.
Mouse= $18~ sells for $30 new on amazon.
Windows 7 Ultimate.... If it's legit it can be worth something. I wont appraise this until OP confirms it is a legit copy. Or if it isnt a legit copy.. well just dont say anything