I had a fun chat with Anthony Bryan a while ago on the topic of how to get involved with Open Source. What projects generally need, what you can do, how you can help and things like that.
The recording/podcast was originally posted over at knowledgecaps.com, but the 22MB file is also available from my site. I'm not sure why, but when I play this in my audacious I get the chipmunk version (ie far too fast playback). So I haven't yet listened to it myself!
A related article I wrote ages ago: What Can I do for Rockbox when not Programming?