A hard drive will never get above a 5.9 on WEI, but seagate's new 1TB/platter drives with 64mb cache do challenge the low end ssd's, so i would sudgest getting one of those.
-I would sudgest saving some money and buying an I5 3570k, they're identical besides hyperthreading, and amd hasn't adopted hyperthreading for some obvious reasons...
- you also don't really need that high end sound card, most of them are for audio edditing, but for those ear tuned people, some of them see better quality, i cant tell the difference :P
- you might want to spend the money you saved on a blue ray drive
- other than that, build looks great for a first timer!
good luck on it