All of our trucks and our loader have mounted two way radios, we rent repeater space and also have a talk around channel for when we are in the same lot. They work great, we also have a few handhelds one for the office and one if we have a sub working or someone in the skid steer. A few of my drivers also have there own cell phones and i also have a cell phone. This all seems to work pretty good. Just my two cents
cell phones are too expensive
we use 2 cb's and 250 watt line amps for communications from home to my truck to let me know about calls for service, we can reach each other anywhere within a 30 mile radius
We only have three trucks (4 if you include the guy who subs for me) and we use cell phones. My phones are on a package that includes unlimited evenings (after 6pm) and weekends so for plowing it doesn't cost too much.
Business Band radios, aren't the cheapest thing out there, at 375 bucks for a installed unit, and a portable at 600. However once you get a system you will never want to leave it. Our system has 2 channels and a talk around frequency.