Only thing I personally would change, if you can find it and afford it in your build that is. Would be to find the Corsair 4GB kit with "C4" designation at the end of the model number. That kit above is the C5 which has timings of 5-5-5-18. The C4 kit is 4-4-4-12 @ 2.1v
Not sure if they do a 4GB C4 or not. I've got 4x 1GB C4's. But you're better with 2x2GB.
Might also consider the CPU cooler that Tom's rated best in a recent cooler benchmark. Think it was like $35?