I have two 1000w TPQ's, had no problems with 4 SATA drive's. I backed off 4 HDD's because they were blocking the intake resulting in high MB temps, something you might want to consider. I have one TPQ that is approx 2 yrs old and the other a little over a year, haven't had any problems out of either. I would buy an Antec again without giving it a second thought.
I like antec also. But I doubt you need 1000 watts. 800-850 units will cost considerably less and provide adequate power. I would use a case with a lower bracket and mount all your hardrives behind a large 120mm fan for adequate cooling. For what you're spending, seasonic has the best warranty; up to 5 years and they manufacture some of the other branded high end power supplies.
Fry's stores has the antec 850w quad for $149.99 in today's ad, for example. Newegg has the pc power and cooling 910w silencer for $183.99 with free shipping, or the seasonic 750w M12D for $180 after $30 rebate. Either one should be adequate for your system.