Mark, all the commercial plates will work. Rocklers installation templates are not real swift on tolerances but their mounting plates are fine. Note that they do not come with the insert for using PC style guide bushings; it must be purchased by itself. The Grizzly plates are identical to the HF plates and can use the Rousseau installation template which comes with a very handy two piece guide bushing. I like the Rousseau mounting kits which include the allen transfer screws, round insert which fits into the PC style center hole, a piece of 1/4" rod and longer screws for attaching your router to the plate. BJ usually keeps tabs on prices so perhaps he will jump in with links to the best deals at this time.
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"