I can second fishtoaster and add that I've worked with people who've been to university, some who did computer related courses and others who didn't - more ofte

I can second fishtoaster and add that I've worked with people who've been to university, some who did computer related courses and others who didn't - more often than not an arts based course, and have also worked with people who didn't do a degree at all. All of those hasn't been a factor in if a developer is good or not. It's when they "hit a brick wall" and give up. The best developers ask for help when stuck and help others when they're stuck.