If you live in the UK, you might want to check this out: Choice FM are running a competition just now to win a DJ spot on their radio station!
All you have to do is upload a good DJ mix. At the end of the month, they're going to get everyone to vote online on the best mix, and the winner with the most votes gets to DJ on air - which is frickin' awesome! As well as DJing on radio, you can schmooze with a bunch of music industry types and get your name out.
The site's up here http://promo.musicradio.com/wkc/competition/
. You should check it out! (Don't let the cheesy name put you off! ;) )