I'm assuming that your price range is around 1200 dollars.
Motherboard- ABit AX8 97 Dollars
Processor- AMD 3200+ Venice 190 Dollars
Video Card- EVGA 6800GT 315 Dollars
Ram-TwinMos Speed P/Ocz Value VX 100 Dollars
Hard Drive-Maxtor 16 MB cache HD 110 Dollars
Monitor- Samsung 17 inch LCD 250 dollars
Power supply- Epower/Tangan 480 Watt 70 Dollars
DVD burner- NEC 3540A 42 dollars
Case- Some 50 dollar stylish case 50 Dollars
I left out keyboard/mouse/speakers, but you can get some cheapo ones for like 15 dollars. Should be a good system, and will give you overclocking headroom if you ever decide to take the plunge.
Other choices for mobos would obviously be DFI-Lan party or Epox NF-4.