What the best from your experience?

I have a ham license, so the ham rig will let me talk to other hams all over the world as I head on down the interstate. It has a much better receiver than your typical CB, plus all sorts of additional features (filters and such) that you simply can't find on a $200 CB.

GPS: I'm currently using a Garmin nuvi 2595LMT. It's my third Garmin; I bought my first one 15 years ago and haven't had any problems with any of them. When I get my own truck, I'll likely get a Garmin Dezl unless someone gives me a good reason to get something else.

I've been accepted into the Prime training program, and waiting for an instructor. (Prime only pairs women with women, and there aren't that many female trainers.)

"True sine wave" power is just like the power you get out of the wall socket at home (probably cleaner, but that's another story). The alternative, "modified sine wave" (MSW) use stepped square waves to approximate a sine wave. MSW works for most things, but not everything. True works for everything that works in your house on commercial power.

A few sites that explain the difference:

http://www.xantrex.com/documents/Tech-Doctor/Universal/Tech1-Universal.pdf
http://www.rvtechlibrary.com/electrical/sinewave.htm
http://rimstar.org/renewnrg/sp_pure_true_modified_sine.htm

Personally, I'm not going to buy anything until I'm sure I'm going to need it.