Computer Job w/ No Computer Degree?

Peterus7 asks: "I posted here a few years back, complaining that I couldn't code worth beans, but I wanted to get into computer science. Well, I'm back- with a psychology degree. However, I hear there's still hope since a lot of system admins and the like have liberal arts degrees. In the mean time, I've been working as a Macintosh digital media tutor, freelance tech support, and an assistant system admin at the campus library. Now that I've graduated, I want to find a job that will accept someone who knows a fair amount about computers, but is pretty much self-taught. Where should I start? Are there any classes I should take?"