Not to be rude, but why are you asking us if you've had a good experience with Antec? You already know what the wattage has to be. Just go with what ya know... don't ask ppl in here for their opinion cause they'll tell u that Antec sucks or that 500W isn't enough.
there are like 5-6 different PS's around 500-600 watts that antec makes. if people have had problems with them id like to hear about it from them rather than experiance it for myself. If something works better then I want to hear about it.
I have never had any issues w/my Antec PSU. I've had it for 3 1/2yrs now with no issues as of yet. It's a Truepower 400w. I have been wanting to switch out to a modular one tho. The OCZ and Ultra units look particularly nice.