i've been lookin all over the web for info to built the best gaming computer.
after 2 days i 'v finaly finishd.
please help me and comment about it, whats good\improve\give the best performance
processor: intel i7 860 box
mother board: asus maximus III formula \ Gigabyte GA-P55A UD6
corsair, antec, ocz are good as far as power supply brands are concerned. i've personally had great experience with antec as far as reliability. 600w should be fine then
and by cooling system do you mean liquid cooling? then no.
if you want to buy a couple of aftermarket case fans, that would be nice.
grab a aftermarket heatsink/fan for the i7 920.
Well, if all you're doing is gaming, then I suggest saving some money and getting an i5 instead. Also, there's a sticky on top of the forum that gives you a format of how you should ask for help, it just makes it easier.
So if you're not overclocking, which I disagree on because it's simple and really is the "cheapest upgrade" you could ever get. And you're only planning on a single card setup.. in which case, you don't need a premium board like the ones you listed.
Not sure what you mean by "2X" for your RAM. If you're getting TWO 2gb sticks, it's cheaper to get a 4gb (2x2) set. If that's what you meant, ignore this . Anyways, since you don't plan on overclocking, I see no point in getting ripjaws as opposed to these, which have similar timings and a lower voltage: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Also, I'm assuming you mean MX. It's really up to you and it does have what thermaltake calls a dedicated vga fan blowing on your 5870. HAF922 is also a good alternative in that price range.
Lastly, seasonic is a premium psu brand. They actually manufacture most of corsair's psus. You should be fine with a 550w as long as its brand name. Corsair and antec are good starts, as knucklepuck suggested. PC power and cooling enermax to add to that list/