The PSU is garbage, its likely to not power your system or further die in 3 months of running at near full wattage when at full load during gaming.
The cpu is a huge performance killer and not a gaming CPU at 2.1GHz, you'd better of with a X2 6400+ @ 3.2GHz
AMD's Phenom X3 processors - The Tech Report - Page 1
Lastly you might consider saving more money and consider a comparable intel system that would offer far better performance, overclocking, stability and clearly value for your dollar.
Regards,
EE