I produce a largish podcast (about 15,000 downloads per episode) that kept getting bogged down with shared hosting. So, this summer, I decided to switch to a Virtual Private Server (check out
slicehost.com, by the way. nothing but good things to say) running Debian. It was my first adventure into Linux, and I'm loving it. Since then, I've gained a working knowledge of:
WordPress
Apache
MySql
dovecot
postfix
bash shell scripting (love love love!)
At home and in the studio, it's all Mac and the time. I'm on Logic 8 and Protools for several hours each day.