FX 6300 - Excellent CPU, great oc'ing potential in the future. The L3 cache will help in gaming.
Radeon 7850. Clearly better
CX 430m - 430 watts should be enough, and it's fairly reliable.
the mobo should work fine.
the ram is cheaper and faster
the case has decent reviews.
the HDD is the same but cheaper (and both from amazon...)
Overall, it will work much faster, at the same price.