I forgot to mention that before I installed Arch, I kicked my Feisty installation up to Gutsy, and everything was working without a hitch. The only exception to that is the loss of my console resolution. I normally tack vga=791 on to my kernel boot line so I can get a proper tty display dimension (I have a 1600×1200 screen, and the default dimensions create enormous letters :| ).
With Gutsy in place, my console screens went black — by that I mean powered up, but showing nothing. I could still log in and start X (blind, of course), and so I didn’t think much of the issue. Strange to me that a dist-upgrade would affect, of all things, the console output. Hmm.