Honestly, that was a poor decision, buying that type of a PC, unless you are going for a guinness world record for the most powerful desktop PC or something. for gaming purpose, a PS3 would have sufficed. the interest earned on the money saved would have been enough to buy a new game every week. And there's no game out there which will refuse to run in its full glory on a simple SLI/crossfire setup with 2 highest end cards. So, I don't see what purpose could be served by such a PC.
Please save some electricity for the country by keeping that PC switched off!