2XGTX 460 is kinda pricey! $250 each! And the 470 is $325. I looked at the x6 1055t at 2.8ghz and the 1075 3.0ghz but i liked the fact that the 1090 at 3.2ghz was a lil faster and when I OC I'm thinking I could get close to 4ghz if not a lil over that. And be stable with liquid cooler. The case is a AZZA 1000 with 2 230mm fans and 2 140mm fans so i think it should stay pretty cool in that full tower. Dont get me wrong the 460 is cool but I cant have it all right now or I would probably do something like that but just with the 470. I gotta wait a lil bit to get the second GPU. And I just figured that I would use 2000mghz ddr3 and get a couple more sticks down the road.
With the $100 price difference in the GTX 470 and X6 1090T that pays for most of the 2nd GTX 460 which gets you SLI performance right near a GTX 480 (also an option with the $100 CPU savings). And going with the X6 1055T which when overclocked nears the OC'd 1090T in performance, better graphic card(s) gets you more performance than an extra 200Mhz in CPU speed.
Premium RAM doesn't get you the performance improvements you'd expect paying premium prices.
If this is build is purely for gaming, i don't see the need for going for a hexa core.. The X4 955 will be plenty good.. BTW, i always like the idea of a single more powerful card.. That way, i liked OP's decision of going for the GTX 470 at the first place.. I am aware of the SLI performance of GTX 460's but down the line when OP decides to add another 470, He'll have a performance figure much more compared to the 460 SLI..
$1775 with monitor I had the same psu with my last Rig seem to work fine till the PC was stolen but this time Im using a Anti theft program that is saved in the bios and cant be removed even if the hard drive is removed or formatted it will still function properly.