Fedora, at least, was able to detect the sound card. The Dapper install CD, on the other hand, was able to get on the internet and start downloading packages without any fuss. I’ll post a more detailed install summary later, as there doesn’t seem to be too much out there at the moment.
Well, there really wasn’t anything to report. I installed Breezy, and everything magically worked. (…almost. I still have to fiddle around with the Radeon drivers.)
Ubuntu is so nice.
I started a new article with answers to your harware questions.