AnandTech has another big power supply roundup, this time they take a look at ten power supplies with wattages between 730W and 900W:
We recently looked at lower performing power supplies ranging from 400W to 450W. While some of those offerings work well, the reality is that they're not much cheaper to produce than slightly higher rated models, so most of that market is falling to the low quality, budget manufacturers. We return this week to higher performing PSUs rated at 730W to 900W that are more suited for high-end systems running more than one graphics card. It's important to have the proper connectors - and a sufficient quantity of connectors - along with a good distribution of power across the rails. Nobody running a higher end system enjoys crashes in the middle of a gaming session, after all. We have quite a few models to test from several companies, including four 850W PSUs.
Check it out over here. The reviewer says from all PSUs they tested in this roundup the Antec TruePower Quattro 850W offers the most bang per buck.