I have the Project 5 Trial Version, and with it I have made several songs to test it out (essentially MIDI files with different instruments).
I do have Live 5 on disc, but don't use it that much. The only songs I have made with it are a Bonus Stage Theme Remix (link)and a Pacman: Adventures In Time remix (link coming soon) using only samples of the music there. And they both suck, although okay for a first few tries.
I'm looking for programs that have good functionality and have a good manual, like I hear FL Studio doesn't.