You can get a better power source for cheaper.
The motherboard is a little overpriced, unless you are gonna need 2 gpu.
I say spend more on the processor and less on the power and mobo
Spend like $100 on mobo and $60 on power.
Get the phenom 9950. You'll have the same experience in gameplay but it'll be better for multitasking.
You could spend a little more on ur gpu like a 4870 and u'll be under the 800 budget.