Unless you really need SLI, get a P45 board. SLI would be better if you were going a little higher powered GPU anyway.
I would check out a P45 and a 4850 or 4870 (depends on resolution and budget), or even a 4830 or 4670.
Good luck on that.
I would also go with Core 2 Duo - E8400/E8500, E7200/E7300, or E5200.