New Computer - Hardware recommendation

my last machine was an x86_64 with nforce3 chipset. I made VERY GOOD experience with it concerning realtime behavior.
For my new machine the realtime behavior has top priority of course but nforce3 is old stuff and i have to look for another solution.
Has anyone made experience with a nforce 430 chipset e. g. on a ASUS board? Does is perform well or are there any known issues?

thanks a lot