Hey Bill
2 Meter is the most popular I think...especially for short range comms...and there are tons of 2 meter repeaters spread around the Country. You can pick up a nice 2 meter handheld radio for well under $200, mobiles are about the same or a little more depending on what you want.
They are FM, so voice is usually very clear and static and buzz free. I remember playing with our CB radios which are AM and they always seemed to have a hum or static...maybe better one's don't...we only had cheapies in our trucks and never could get them to work more than a mile or so.
With 2 meter...say you are having a meet and greet our outing somewhere.. You should be able to find a repeater in the area and have people use it as they are travelling, then switch to simplex (radio to radio without the repeater) when they get closer.
For an example...my cousin and I talked on our handhelds when he was in San Diego and I was in Los Angeles over a repeater on Catalina Island. For where we were, that was ideal as there were no mountains or obstructions between either of us and the repeater.
Depending on location, you may not get that range. 2 meter is kind of line of sight. If you can see it...you can talk to it.
Check out places like Ham Radio Outlet
www.hamradiooutlet.com or
www.aesham.com to check out different radios and gear.
Here is a nice site to learn more about HAM radio:
http://www.arrl.org/
Mark