Motherboard change - DFI Lanparty UT nf4 Ultra-D
Is he overclocking? If not, Corsair XMS isn't worth it. Regular Corsair ValueSelect will do fine.
Only other thing I would suggest is getting a different power supply. Antec is an "Eh, whatever" brand. You can find really good PSUs with ThermalTake, OCZ, and a lot more I can't remember cuz I'm not a PSU guy, lol.
Otherwise, it looks fine. Only thing I would really recommend changing is the motherboard, and you will save money with ValueSelect RAM.