Nice choice in motherboards. However, tiger direct rips you off. I got my VNF3-250 and and AMD 3000+ for about $225 at www.newegg.com
That was about 2 weeks ago, dont know if the prices have changed.
Look, if you want great performance now and probably still decent performance till the end of summer next year for a cheap price stick with the 754. I'm gonna come along a lot of money over next summer so I plan to buy a socket 939 then.
Also If your planning on getting an ATI Radeon 9800 Pro, I'd instead look into a Nvidia 6600gt. Its around the same price (most likely cheaper) and it has way better performance. Believe me I spent months doing my research before I bought my comp.