Hi Stewart,
There are two great resources containing links to university courses in AI:
http://www.emsl.pnl.gov:2080/proj/neuron/ai/courses.html
http://dmoz.org/Computers/Artificial_Intelligence/Academic_Departments/
Speaking from my experience (Masters degreee in CS) there are no real advantages/disadvantages of choosing one field over another... What specific topics withing the field of AI are we talking about?
Cheers,
Denis