by far one of the most influential things i've ever read concerning turbos is
THIS
that page is unbelievable and gives many suggestions to turbo'ing a honda/acura. Also read through it and it describes what the numbers (trim and a/r) mean and how they relate to the power/airflow etc.
Actually, that link should probably be in a post, by itself stickied for people who are getting into (or anyone actually) turbos. It's that good (i think).