As WW mentioned, there are no curriculums dedicated strictly to herpetology, or a “herpetology” degree available. However, there are some excellent opportunities available to immerse yourself into projects involving herps, should you chose a University with a faculty interested in such areas.
A few Universities harboring recognized herp programs, and faculty interested in such, would be the University of Texas-Austin, University of Tennessee-Knoxville, Marshall University-West Virginia, and Florida State University-Tallahassee.
There are many more, but these are some of the schools I have direct experience with.
There are a host of opportunities available to the student wishing to further their knowledge and experience within the realm of herpetology as well, just take a peek at the following link: http://www.parcplace.org/herpjobs/job_frames.htm
If you would like contact information regarding the programs for any of the schools I have mentioned, e-mail me directly and I will place you into contact with some faculty members I know.

Best of luck to you,

Jeff Snodgres
University of Arkansas
snodgresjeffreys@uams.edu
501.526.4856