Here is a small comparison of how the camera system recently evolved ... its still pretty basic ... anyway heres the old and the new setups:
Old Setup VS. New Setup

http://www.gamedev.net/community/forums/topic.asp?topic_id=440434

a point of view related to mine, it seems is the one by "bootstrap"

"Excellent! Unlike 99% of people (including programmers) these days, you ..."