You can use any of these songs as long as I get writing recognition. I'll post a little blurb about the song and the title. These are ones I've written on the MB boards. I also just posted a collection of some raps I made awhile ago - you can take a look, I don't know how well they would transfer into songs.
I suggest looking at
The Story of Lindsay first,
Examining Love in the Case of Darling Mary second, and then
I Wonder (Next Year) third. Those are my personal favorites... the other songs could inspire you musically, too. But have at em!