can anybody refer me to a portable handheld CB that doesnt cost that much?
I have a Radio Shack 21-1679 that I've gotten a lot of use out of. I think it was under $100 new at the store a few years ago. The antenna is removable (BNC); with an SO-239 adapter you can connect a PL-259, such as those found on most retail CB antennas. It has two power level settings, 3 watts (high) and 1 watt (low).
I'm not sure Radio Shack sells that radio anymore, though you could find them used (or one that's just like it) pretty cheaply.
Radio Shack 21 1679 Weather Alert CB Transceiver New NR | eBay
Make sure any portable you get:
1) Has a removable antenna with a standard connector type, so that you can hook up whatever kind of antenna you want.
2) Accepts multiple power sources, such as a Ni-MH battery, AA battery pack(s), and 12VDC.
3) Optionally, has a speaker/mic jack.