Umm, for someone who know little about a cb, the Cobra 29s are about the most user friendly (and won't get you into trouble)... a good entry level radio.
I ran a Cobra 29 for a long time before upgrading... my current "barefoot" radio will push between 200 and 250 watts...
steved
I ran a Cobra 29 on my Palomar for a long time ... ... variable power, echo board etc. But, if they ever get to the point of wanting a little heat, they will have to find a HD amp, or have a variable power installed in the 29. The 29 will only do 20W without clipping limiters and making a "splatter box", but the dead key will need to be lowered to 1 or 2 watts, not 6 or 8 after a 20 watt peak and tune.
All of the radios I listed are just as simple as the Cobra with no internal amp like your 200w radio. Radios with internal amps run hot and are not usually very reliable.
The radios I listed will do 40-60 reliable watts and are easy to operate, plus have variable power to run with a heater and no internal amp. If you lose an external amp, you can still run the barefoot radio.
If you are just running with a buddy, a handheld does just fine. A 4W radio won't make it out of the swamp if your looking for information from the truckers.
As far as antennas go ... ... ... . here is my take, take it or leave. A bad antenna will kill a good radio, and vise verse.
A 102" whip on the ball hitch is a good as it gets for foreward TX, but ugly and cumbersome even on the RR corner of the bumper which will give you foreward/left propogation.
A roof mount (requires drilling a hole), is as good as it gets for omni directional, but a 102" is tool long. A W-1000, K-40 etc will work here.
A magnet mount in the same spot as a roof mount is good, but doesn't ground as good.
A W-1000, K-40 on the head-ache rack would work good, roof mount style, however, is back to a more foreward propogation.
A firestick on a passenger side fender or passenger side bed rail is my least favorite. A continuous wound antenna is darn good, but the glass antenna lacks mounting options good for a ground plane.
Any antenna will use your truck as a ground plane, and the roof is the best ground plane on the truck. a 102" whip plucked down in the center of the roof would be the best you could do.
back quiet in the Suthern Buckeye :-laf