Followup:
I've been flying with Linux for about a week now, and I've worked out all of the details within the past 3 or 4 days. It works very well, delivering framerates between 40 and 160 on my system (Athlon 64 3Ghz, nVidia, 1GB RAM).
The graphics are _slightly_ different from XP. The only perceptible difference is that some textures exhibit a slightly different color (and once in awhile I see some black speckle, but only rarely and only for brief periods of time).
I installed the LINUX Teamspeak 2 client with no trouble at all (about 5 minutes) and it worked without any special configuration in "native" mode.
I used Aces High's native "control remapping" to map all of my joystick buttons and hardware keyboard controllers to mimic the setup to which I had become accustomed under Windoze XP. I like the new setup, which is 95% identical to what I had before. The only real difference is that I can't designate a "shift" key for my Logitech Extreme 3dPro joystick. Lacking a "shift" key, I can only assign one function to each joystick button. That cut 11 buttons out of my routine. So, I installed a numeric keypad (USB) and set it directly next to my joystick so I can use it for view keys, etc. That freed up more than enough additional buttons to compensate.
I got my first 4 "LINUX Kills" in Air-to-air combat yesterday and today.
When I get some more time I will post more detailed instructions on how I got all of this working. It's been a great adventure. Thanks again to all those who helped!
-Peaboduy-