Bill. I picked up a nice little book a couple of years ago by Warren Taylor called Tudor Figures of Rhetoric that's still in print:

http://www.amazon.com/exec/obidos/search-handle-form/ref=s_sf_b_as/102-3552399-0616950

There's also Quintillian available in the Loeb addition that most good college bookstores will have or can order, and Cicero's Rhetorica ad Herrenium.