Yeah, listning to other styles is a good step forward. when i started uni i was just into dance - didnt really have much time for rock, but after being there 2 months, i got loads of different stuff from people who were in bands and stuff, so i went and got a few albums, and im glad i did, sometimes its nice to hear some variation from thump thump thump!
Jack johnson is amazin to listen to late at night!