Song to learn for 3 stooges

[fretdancer]

Hi all
I have recently got together with 2 other codgers to jam together. Its early days, we dont really have any sort of plan or format other than currently to try to put together a 12 bar blues and have a bit of fun making music.

Although we all play the 6 stringed wonder, one of my friends favours the bass guitar so I was thinking that we are 3 parts towards making a band and we should be able to learn a song between us - 3 seperate parts, bass rhythm & lead and come together and try to make it sound half right, especially if we can get a drum backing track somehow ( I have band in a box but dont know how to use it - presumeably I can do something about the drums with that?)
Anyway, I am wondering if anyone has any suggestions for a song that might fit the bill with 3 guitar parts and even possibly the whereabouts of a drum backing track?...nothing tooo difficult now - we are only beginner to intermediates.

Pete