I have always been using Asus motherboard with AMD cpus.
Lately I think Intel is stepping up quite well. For now I have a 5000+ Socket AM2 AMD cpu with a Asus M2N-SLi Deluxe. Not the best out there, but I picked the cpu/motherboard/and 2gb of ddr2 ballistix crucial ram for $120. Does fine for anything I do.
As of now, I have Windows 7 beta installed, and I must say, VERY impressed. :-D
