Approximate Purchase Date: By the end of this month
Budget Range: < $600 after MIR
System Usage from Most to Least Important: gaming and surfing
Parts Not Required: keyboard, mouse, monitor, speakers, OS, and case(have Antec 300 Illusion)
Preferred Website(s) for Parts: newegg.com
Country of Origin: USA
Parts Preferences: no preference
SLI or Crossfire: Yes, in the future
Monitor Resolution: 1920x1080
This will be my first build, and I want to get a confirmation that the parts I'm planning to purchase below will work together. Also, I have an Antec 300 Illusion and plan to have HD 6870 crossfire in the future. So i guess I want to know if my case will be big enough to fit 2 HD 6870.
If you're going to build an AMD system, you should get an AM3+ socket mobo with a 900-series chipset; this will give you the option of upgrading to Bulldozer if such turns out to be worthwhile.
Even without needing a case, $600 will not be enough for a Sandy Bridge build unless you're willing to give up on Crossfire; cheaper socket-1155 motherboards either have only one PCIE slot, or run the second one at X4. If you can raise your budget to as high as $750-$800 though, you can build a nice Z68 system that will offer a reasonable degree of future-resistance.
Seasonic, Antec, Corsair, XFX, and Enermax/LEPA are among the better brands.
CM's GX and eXtreme series are really piece of ****, but that can't be said for Silent Pro and Real Power So, it's bad to consider all of CM's PSU as bad, the Silent Pro and Real Power are a very good choice.
I would not buy a CM PSU unless I had read a competent technical review of it, and then not until they have withdrawn all of their liar-labeled units from the market as well (philosophically, I will not support a company that outright lies about its products).
Although I do not own that case, I believe they would. Perhaps someone who has one can confirm. Provide you don't overclock them to the limit, and/or they exhaust most of their heat, the fans in that case should be able to keep them cool enough.