We ended up going with three Panasonic AGDVC30's that a ear ago were priced near $1800 through full compass. Good zoom, decent low light (not as good as a Sony PD 170) and good color.
They've provided a fine image and we feed our switcher through an s-video balun. It was the cheap way to go, but provides an in-house image that's 80% as good as if we spent $10K or more on each camera. We'll upgrade to nicer cameras down the road. Maybe HD in a few years.
Sean
www.harborsidechurch.org