Assuming you're not using 128MB sticks of RAM, yeah, I'd say you could support Vista.
However, if you're going to build an AMD rig, go with AM2 Sockets. This
is an Asus, it has 1 more PCI-E x1, but 1 less PCI slot. 2 less SATA slots, but I didn't think you'll be using 6 HD's any time soon.
Vid Card's good, I don't think the sound card matters, and the disc drive's good.
If your budget permits, go with this
RAM setup. Faster than your's, and probably more. Dual Channel, too. Next, how big of a Hard Drive do you need? I don't think you need 10,000 RPM, do you? 7200 isn't that
bad. I think I run with 4600 RPM on my laptop. Anyways, if you can stand the blow to RPM, go with this
. Cheaper than the 37.5GB 10,000RPM Hard Drive, same price as the 80GB of the same sort as the WD Caviar (the one I suggested).
Vista Home Premium sounds great. What case are you using? Don't skimp on it; You'll be staring at it for a while.