OK...I think I found a new online addiction: Jon Lajoie. Check out a couple of his videos:
The Everyday Normal Guy rap:
http://www.youtube.com/watch?v=5PsnxDQvQpw
High as F#%k:
http://www.youtube.com/watch?v=i2spZ...eature=related
Both really great satire type songs. Obviously there is some cursing in both these, so probably not safe for work.