If you desire a nice 3rd person, satellite camera with perfect, non clipping wall collision and great animation blending(with easier to read/alter code than my version), then go here:

http://www.coniserver.net/ubbthreads/showflat.php/Cat/0/Number/681060/

This is the best 3rd person camera you're going to find for 3DGS. At least, with its default settings it's fantastic. It also features enemy lock-on, as well. If you're familiar with Kingdom Hearts control, you'll appreciate this.