People often get confused around those parts. The only "true" Multiple-rail unit that's still around is the Corsair HX1000. That Powersupply has two 500w's in one housing. As for all the rest of the Single/Multi rail's, they're 99% identical.
Thermaltake are a mix of bad/very bad and good/very good. The original Toughpowers are CWT PSH, same as the Corsair TX750... which were decent. The newer Toughpower XT's mostly use CWT DSG which is very good. The HX750, HX850, and TX950 are all quite similar to the CWT DSG platforms and they're amongst one of the best PSU's in their wattage range. Some of Thermaltakes TR2 units are just so-so, and some are just plain trash... Same goes for their Litepower/Purepower units. As for the TT Grand units, they're further improved CWT DSG's.
Review of the XT 775w: http://www.hardocp.com/article/2010/...w_psu_review/9
Review of the TT Grand 750w: http://www.hardocp.com/article/2010/...power_supply/9
In short, it really depends on what TT PSU you pick. They range from complete turd, to really good.
TBCS 5TB Club :: coilgun :: bench PSU :: mightyMite :: Zeus :: E15 Magna EVThat we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours, and this we should do freely and generously.
--Benjamin Franklin