Update Nov 19 2007 - Upgrading to Ubuntu 7.10 with dual displays working. I've now also deleted my Windows XP partition!!!
Update- switched to Linux!!! running Ubuntu 6.06 LTS with dual displays!!!
Despite my first failed attempt to completely switch to Linux with Ubuntu, I'm back and ready to try again!!! With a whole bunch of command line/terminal experience (working with Ubuntu Server Edition), I think I can finally get Linux to do what I want :)