Re: Don't like the standard music? put in your own!
I would definetly use Audacity. It is free, can record, edit, and export as mp3's, oog's, and wav's. I use it for a lot, and is fun to play with.

[EDIT]
By why do you need to put in your own music? You can just turn off the music in the settings, and use a music player. :P