I'm a Linux guy too, but while it would be cool to use Linux for recording it requires a bunch of time investment using workarounds such as wrappers, alternate (non-optimized) audio drivers, and depending on your distro you might have to install the low latency kernel as well. So for now my setup is two PC's. My DAW is Windows 7, I don't keep it connected to the internet, don't keep Windows Update running, have it highly optimized for DAW use and that is all I use that machine for.
For everything else (internet use, graphic/video editing/website editing, etc) I have my Ubuntu machine which is just as powerful as my DAW. So I get to enjoy my Linux fix and have no headaches or hoops to jump through when I need to work on my music. I am indeed looking forward to the day when all drivers and software are offered natively for Linux.
Rev.