Rnch, in your area I would either try Cingular or Verizon. If the old Bell South or SBC used to be strong in your area, then Cingular would be the one to try.
Also, Cingular is migrating to GSM, as is AT&T (AT&T says they should be finished with the migration by Q2 2003). Verizon and Sprint are staying with CDMA.
Both technologies are good, but since GSM is poised to take over the world, IMO that might be the one to go to if you travel overseas.
If you go with Voicestream or Cingular, get the Motorola P280. This is proof that Motorola is trying to improve user friendliness of their equipment, and I've had users of the phone tell me it's terrific.
I can't comment on rate plans, since they vary from region to region. I have Verizon 600 nationwide plan with 3000 minutes nights and weekends at $86.00 tt&l.
PM me if you have more questions.