Weeeeeeeellllll..... I have a Asus M2N-E SLI sitting next to my bed that WAS being used as a bedside Xbox Media Center machine, but the PSU has since died. I'd have to hook up a power supply to it to test it, but otherwise it's got enough power behind it to run media center stuff or just low-end stuff rather well.
Asus M2N-E SLI
5400+
G.Skill 4x 512 ddr-800
MSI 8400GS
80gig sata
Memorex 16x DL pata
Are you looking to buy?