I just got a Ukulele and learned a few chords but I was wondering if anyone knew any good songs to learn? Did the Beatles ever use one?
If you just want some strumming you could learn Israel Kamakawiwo'ole's version of Somewhere Over The Rainbow.

If ou want something a bit more challenging look up Jake Shimabukuro's cover of While My Guitar Gently Weeps.
It's Only Rock and Roll, But I like It