Abit IP35-E Motherboard, 3Gig- corsair RAM
PNY 9800GTX+ 256MB DDR3 Video Card,
Core 2 Duo E4300 overclocked 2.2Ghz
SATA Western Digital 160Gig HD,
Windows 7, Dual 19" 1440x900 Monitors
That will be fine. You will go through Microsoft for all support. When you buy the OEM version, all you're getting is the CD and key in a just a cardboard sleeve. The retail version comes with the fancy box and manuals. Both versions carry the same support and warranties from MS.