thanks for looking out dudePersonally, I've never done any in-depth research on motor mounts, someone who has may be better able to answer your question. However, I'll give it a shot.
Hasport is a well known brand and I see people use those a lot. Also, I hear Innovative is a good brand. I also know that a lot of people prefer OEM ones.
here are some threads that are actually asking the same question. I'm sure if you search you could find more, and not just on ClubIntegra
http://www.clubintegra.com/board/showthread.php?t=83262
http://www.clubintegra.com/board/showthread.php?t=84363
http://www.clubintegra.com/board/showthread.php?t=81370
Check out the Club Integra store too, there are some good names on there.
http://www.clubintegra.com/store/motor-mounts-inserts_c23.html