Im running on a i5 2500k not overclocked,
3 coolermaster 120mm 2000rpm fans
gigabyte nvidia gt 430
a 60gb OCZ solid state drive
8gb of adata 1600mhz ram
im running on 500 watts of power which came with my coolermaster case
it will work because the nvidia GT430 hardly draws any power so its doubtful you break 225w at load but cooler master PSU that come with cases are not quality units. I would not hold your breathe for that unit to ever provide 500w at even peak.
Yeah that power is sufficient, but please keep in mind that many PSUs are complete garbage and will not deliver their rated power. If you're concerned, you should see if any professional sites such as HardOCP have reviewed it.