If your going to use a 45nm cpu last time i looked on newegg they had asus p5k pro for $109. They work with the new processors quite well. mine is doing prime95 as I write this. E8400 4ghz/2000fsb. been going for 2.5 hrs..... max temp 63 deg. (real temp 2.60)(air cooling) 1.18 vcore. 1.47 fsb. 6 sata ports- crappy audio (curse of onboard audio
The gigabyte boards are fantastic too.
They all seem to be pretty flexible these days.
If you are going to purchase two video cards then why not get only one now and spend more on a better crossfire/sli board and get the 2nd card when you can afford it? Especially if buying oem license operating system.
If you already have the cards then disregard above statement.......