Are you into file sharing? *Try this program named "Morpheus." *It connects you to one of the biggest file sharing communities on the internet (250000 Gigabytes right now at 12:41am, usually more). *I just did a search and came back with an acoustic version and the electric version.
Go here
www.musiccity.com
download it
search and download virtually whatever song you're looking for.
I would probably pay for the service, but that's for the lawyers to decide.