Mac House Cleaning - Finding Duplicate Files

[E. John Thawley III]

Okay: its time.

I've got 2 computers and nine different hard drives, ranging from 250g-1Tb. Because I've added them mostly one at a time (and have been too lazy to remove old files as I've added newer, larger back up discs, I now have duplicate files and folders all over the place. Spotlght has made it so easy to find things, I rarely use the finder hierarchy to find things anymore. And I've let things get real sloppy.

What software do you Mac guys use to find duplicate and redundant files? What other disc management, disc cleaning software should I be looking at besides Apple Disc Utility and Disc Warrior?

Thawley - doing my spring cleaning 3 months late