*I would spend an extra $10 to $20 dollars and get the 2 GB version of that video Card....... I did on mine....... 20 dollars for 1 BG of extra video memory.... heck yeah
if you looking at possibly changing to a different MB, I think I read somewhere that PCIe 3.0 is out now, even think MSI has some boards with it............something worth researching anyways perhaps....
I like ASUS' AMD MB with the 5 yr ( or 7 yr ) warranty & military grade components...... ( you might get lucky and catch one real cheap on Shell Shocker @ newegg, I watch that daily myself to see what might show up )
you really don't need 6 cores, I would drop to a quad core and go for the Phenom II 980 3.7 GHz quadcore, should about equal out in price or close to it......
I would go with a good $150+/- ASUS MB also, that comes with MemOK, TurboKey II(or III? ) , Turbo Unlocker etc... features , seems I sometimes run into an issue with memory when dealing with Gigabyte MB's.... YMMV though.....
anyhows, good lil build you got going there ( I have no experience with OCZ PSU's..... I have recently started leaning toward the Thermaltake TR2 RX model series )
Good Luck,
TC