I ran my first Linux live CD in January 2007. I've been using free, open-source operating systems on my personal machines for much of my work for the past two years, more intensively in the last year. And right here, right now, with a collection of old and dying hardware, my main laptop being a 2002/03-era Toshiba Satellite 1100-S101, I've moved from OpenBSD 4.4 to Ubuntus 8.04-9.10 and now to Debian Lenny, and things are going better now than I ever thought they would.