yeh as B said that antec one;s are made by the same manufaturer BUT only the low end one's like the smartpower. i would just get a good one for future upgradability.
I think he should go with a seasonic unit or a PC P&C if he can stretch that far. Edit**, with all the threads about PSU stuff at moment i am getting confused. The psu he was looking at will actually be good enough, just looked at his specs. but i think he should consult the PSU Sticky. I think the PSU Sticky should be updated about PSU's for High end rigs using GPU's like the 8800GTX range.