A while ago, I considered such a move and did some research. The case I liked best was the lian li V351.http://www.newegg.com/Product/Product.aspx?Item=N82E16811112221
It comes in several colors. It takes your standard ATX psu. There is sufficient room for graphics cards as large as a 5870, and even a 5890 by relocating a fan. Your GTX460's are no problem. Cooling looks good with two 120mm intake fans. It is aluminum which makes it lighter. There is a similar V352 version that is newer and much more expensive.
CPU cooler height is about 100mm max. The best cooler that fit was the noctua NH-U9B:http://www.newegg.com/Product/Product.aspx?Item=N82E16835608016