Best radio for the buck is either the MT-4 or the 4PL. I decided on the 4PL myself mostly because it was factory back lit. Can't go wrong with either.

I am sorry but a 4PK or M12 is a waste. I used to run M8's and such back in the day, but now they are no longer worth the money compared to their next level down. Heck, even the new MT-4S radio has the M12's firmware.