Blown Up /Usr files

[Jack Schneider]

Hi, Anyone.
My /Usr directory/slice is now over 5.2 GB for a basic workstation 6.2
install. thats 90%+ of the slice. I need help with a procedure to clean
it up. The machine is:

FreeBSD Growler.maplebend.net 6.2-RELEASE-p3 FreeBSD 6.2-RELEASE-p3 #2:
Wed Apr 18 11:16:35 CDT 2007
KDE 3.5.1

Updated /ports & Sources via CVSUP.

I have no idea where to start. Where should I look for redundant or
obsolete files?

Thanks, in advance
Jack