Windows 7 should find all your board devices. I also have the 64 bit version, and had no trouble installing it without using any manufacturer's device drivers.
I just purchase a new system and chose the M3A78-CM motherboard. Right now I cant use the speakers in my monitor (samsung 215tw), and I think its because im running Windows 7 , and I dont have the right drivers for the chipset and audio. If you have any information on this let me know (dsnugget@hotmail.com)