Just a hint: If you plan on an i7 don't go for any more than the 920 because everything above can easily be reached with overclocking, especially the 930. The difference between these two is the multiplicator of 20 on the 920 as opposed to the 21 on the 930. Takes you about 20 seconds to change it in the BIOS without any heat, voltage or whatever increase. And if you want, you can achieve the level of a 975 anytime as well with some in-depth OC'ing. Just make sure you get a D0 Stepping since it needs way less voltage and therefore runs a lot cooler than the older C0, even at stock speed.