Yea that was fast.

Less than half a day's worth of actually being able to monitor progress and fix bugs and I'm up and running with probably 90% of my stuff back in place. Configuring X was a bit of a bear, since it's not just "emerge nvidia-drivers; modprobe nvidia," and I've still got some tweaking to do, but things went pretty painlessly all told and it's completely usable.

Some of the things on the TODO list:

• Can't mount my USB drive. Gotta try it on the tower to see where the problem lies. (Edit: Got it. Kernel had wrong default codepage set for vfat.)
  
• Gotta see if/how well suspend can work.
• Talk to Sean to see if we can remember what fixed the problem with alt+k,k in ion3. I think it was a matter of him giving me a different tarball but not sure.
• Lots of rc files and that kind of thing need to get moved off the tower and restored from the USB drive.
• Configure tpb font and display position so it's actually readable. (Edit: got that as well, but I can't get tpb to start on boot with /etc/init.d/local...)
  

Oh and glxgears is rocking out at 1400 fps on average. :)