PCPC has a TON a great Power Supplies... very worth every penny.
Enermax has been making serious inroads the past year or so. Not quite as "clean-cut" as PCPC, but getting there (wires are not as straight and wound as well, etc...) cost about 2/3rds the cost of PCPC.
PowerMan is an up and comer, might be something to watch. Long way to go with the wiring and such... but Quality components are in the higher priced Power Supplies. About 2/3rds the price of Enermax.
Just watch out for Tigerconn (I think that's name) Some power supplies are good, some terrible.