Deleting duplicate files on two different drives

[ah pook]

My problem is, and I'm sorry if this is elsewhere, but I've checked and found no answers: I have an 80g drive with a music folder, and a 120g folder with a music folder. Some of the these files/folders are duplicates. Is there a way to remove the dupes without going thru by hand (which will take me hours) ? If not, I'm willing to do it so that I don't get two copies of a bunch of songs when Banshee scans my hard drives. Which is what's happening now.

Any Ideas?

Thanks in advance....