I have been looking to build my first PC rather then buy a pre-built. I know what I want for most of the parts except the power supply. I am looking for a PSU for the following build with initially an Visiontek 4870X2 but might add a 2nd in CF later. I know the Cosair TX-750 is good for 1 card, not sure for two.
Any other comments on build will help too. For gaming mainly and trying to future proof it for at least 5 years.
Pricing not worried about.
Secondly, future-proofing for five years? Good luck. Within a few years, you'll probably be groaning about how your once-top hardware can only manage medium settings on the latest games. Just the nature of the game, unfortunately.
Don't bother with Vista Ultimate unless you know for certain that it has a feature that you need. Home Premium covers pretty much everything the average user will ever need, for much less money.
The TX750 will run a pair of 4870X2's, but perhaps not with as much headroom as many people (myself included) would like. The Corsair HX1000 is a nice upgrade, reasonably priced for a 1KW PSU, has modular cables, and pretty much guarantees you can run any hardware you want. With a little patience, it can often be found on sale for a few bucks off, too.
Think real hard before going for the second 4870X2, as the returns are very diminishing for the money and power needed, especially on anything less than a 30" monitor at 25x16. And that's assuming a given game is even able to begin taking advantage of the second card.
i7 2600K | ASUS Maximus IV GENE-Z | GTX Titan | Corsair DDR3-2133