Fish:
In my pickup, a Cobra Classic 129LTD, purchased in 1987. You can get one now on special for less than 100.00. The Uniden that running mentioned is also a good unit. Lastly, if cost is the biggest factor, a RadioShack TR-423 is a great unit, real small, has a good kick. (the one I have constantly gets the famous "TURN THAT THING DOWN" but it doesnt have a mike gain. lol) I use that one in the Big Truck, as I slipseat and it is easy to change from truck to truck. It doesnt have bells and whistles, but as I said, it is a good unit.
hope this helps,
Ulster