I found the best source for new music for my zen, and it won't cost me a penny! The public library.
I went in and renewed my card today, and I'll be adding the following to my music collection:
the best of the rolling stones jump back
rod stewart vol III of the great american songbook
tom jones reloaded greatest hits
lenny kravitz greatest hits
john lee hooker chill out
pat benatar the encore collection
the doors bright midnight live in america
u2 the best of and the b-sides 1980-90
Not bad, huh!