Yes.. I just recently installed the latest hd-install image on my dual opteron box.. install went flawlessly.

After installing, I pointed sources.list at:
deb http://debian-amd64.alioth.debian.org/gcc-3.4 sarge main contrib non-free

did a dist-upgrade, and installed all the software I wanted. It's been up for a week with no issues. I had to downgrade my kernel to 2.6.7 because of a minor bug in the USB code that crept into 2.6.8 that causes my USB2 external box to not work properly (fixed in 2.6.10pre, but i'm too lazy to compile that stuff) as soon as I'm done with the burner, i'm going back to 2.6.9.

I installed the system off a 512mb USB thumb drive, I can send you all the info on how I did it if you want.