Greg,
The Library that I use for my projects is the Intel OpenCV library. It's an open sourceish type of library. You can find it here:
http://www.intel.com/technology/comp...encv/index.htm
Unfortuantly, all my good sample code is at home and I'm going to be leaving for the Portland regional after work. When I get home on Sunday I will try to post a few samples of what you can do with this library.
-Jim