The 2 Nonctua fans are for the after-market
Heat
Sink
Fan, the Thermalright Ultra-120 Extreme.
I have chosen the E8500, but the E8400 would do as well. The Q9450 is a great chip too. But for gaming I would go for the E8500.
I don't know much about sound cards - sorry.
Case? Why not the Coolermaster Cosmos S?
http://www.ncix.com/products/index.p...e=COOLERMASTER. You have to know that it's a great case for a water-cooling setup...