is the 500w ok for what im running now?
My personal opinion is that you're on the edge. Looked at your original post and you said the computer's sometimes a bit sluggish. While that may be because your total system is slow, it could also indicate a slowdown from inadequate power. As mpilchfamily wrote, your total amps are low, and that affects everything involved, especially if you're overclocking that FX55.
My belief is that it is better to be overpowered than underpowered. Overpower may waste a bit of power, but underpower is asking for trouble and headaches when things don't perform as expected.