MacDaddy - I don't think you could get much bigger than the University of Texas in Austin, TX. You can check out the UT Bass Lab web site at
http://uts.cc.utexas.edu/~neubert/.
Dr. Neubert is an incredible teacher, John Fremgen is awesome.
I visited the University of North Texas in Denton a few weeks back. I liked the smaller campus. UNT has two renowned double bass teachers Jeff Bradetich & Lynn Seaton. Both are beyond incredible. Mr. Bradetich is known as one of the world's leading performers and teachers of the double bass.
But if you want a big campus and a cool city then you should check out UT Austin. Plus, Austin is the Live Music Capitol of the World!