+1 for X48 Chipset with DDR2 ASUS Rampage Formula, P5E Deluxe, Etc.
+1 on DDR2 RAM Good Brand RAM Crucial, Corsair, OCZ, Patriot, Etc. "NO PQI"
+1 on WD 640
PC Power & Cooling S61EPS 610W $89.99 At Newegg after rebatehttp://www.newegg.com/Product/Product.aspx?Item=N82E16817703005
The reason for DDR2 is Price and DDR3 is not really that much faster. Get DDR3 only if you think you will upgrade your MB within a year(Nelalem). DDR3 should drop fast after DDR3 is mainstream.