Nice!
Thanks, Rob.
I threw the C320 in my cart at Amazon this morning (thinking I'd come back and read more later). Glad I did because between then and now the price has increased $6. Weird.

I haven't done much looking/reading yet, but I found this GPS forum to be (at first glance) a good stop:
http://gpsinformation.info/forum/

Also, the Garmin site is informative, complete with firmware updates:
http://www.garmin.com/products/sp320/

The price is the real deal clincher here. A friend of mine has an $800 zippie-doodle Garmin, but I'm not into spending that kind of money for a navigator. The C320 has been out for two years now, and I think that should point to an adequately satisfied user base.
I like how simple the interface seems to be.