Replying to Canon 20D Question

Alright just some background info on me. I'm pretty much a beginner in digital photography. I took a class last year in high that was half a year 35mm and then the next half was digital. I used a Canon Rebel 2000 35mm and some XT's and D40's on the digital part. I like the feel of Canons a lot better. I know some stuff about aperture and f stop but not a whole lot.

Now last summer I really wanted to get into photography and started looking at a bunch of Canons everything from the XT to the 50D. I got really hooked on some 20D's since they shoot a fairly decent fps. I don't really care a whole bunch about megapixels. Last summer I use to see some 20D's withe a 18-55mm lens kit and other stuff go for around $700 on Ebay. Well I kind of faded out of looking for cameras until now. So recently I would a used 20D locally for $400 with a 18-55m lens. The guy says everything works and the body is in perfect condition. Now I know I would want to upgrade lenses fairly quickly. But would this be a good deal for me? I would like to minor in photography in college in the next few years so would I need to upgrade to something better then? I know the 20D's are fairly old but I've heard a lot of good reviews on them so I just thought I'd get some feedack.