I pretty much agree with everyone else's suggestions. But, I would decide on which Graphics cards I'm going to SLI/CFX before deciding on the PSU. Some of the high end GPU's can pull a lot of power. But, rule #1 is never skimp on the PSU. It's the life blood of every component in your system. A bad one and you could be buying a whole new rig. Get the biggest and best you can afford. Also notice that most of the top quality brands mentioned above were made by Seasonic.
Actually, the seasonic X-850 is a pretty decent price for a top quality PSU. But, the XFX is good quality too, they are made by Seasonic, I'm pretty sure.
EDIT: here are 2 good references when deciding on what PSU to buy. The second one is very good.
http://whirlpool.net.au/wiki/psu_manufacturers
http://www.realhardtechx.com/index_a...s/Page5471.htm
I've looked through ones in my price range and have also looked for reviews and so forth. That's one reason I settled on the XFX.
I'm not even sure if I'm going to do SLI or not yet, which is why I want a decent sized one, but in my price range. If anything, I'll probably do an SLI with either my current or a GTX 6xx series. I don't want to break my bank.
You can get the SeaSonic X-750/850 Gold for a little less/more than the XFX. The 750 would be enough to SLI any 2 video cards out there.
SeaSonic X 750 Gold
Under the price, you can select other models in that series as well.
Well this will be in your range and then some !
EVGA SuperNova 120-PG-0750-GR 750W Power Supply - 80+ Gold, 100-240 vac, 50/60 Hz, Modular, SLI Ready, 10 Year Warranty at TigerDirect.com
An 850w is sufficient to SLI two of either of these, correct?
Newegg.com - EVGA 02G-P4-3657-KR GeForce GTX 650 Ti BOOST 2GB 192-bit GDDR5 PCI Express 3.0 SLI Support Video Card
http://www.newegg.com/Product/Produc...82E16814130910
I wouldn't SLI 2 of those in the first place. Get one of those, or get one much higher end card. And as I mentioned above, the SeaSonic 750w PSU will be plenty for 2 cards.
Yes these newer high end cards use much more efficient GDDR5 still you can really never have too much clean power but a lower power higher quality PSU is better than a higher power but lesser rated/quality.
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