Lots of great information and options - Thanks folks!
I only have a "dumb" cellphone, so tethering is a non-starter.
Clear looked interesting, but they do not offer service in my area.
Millenicom looks like a good alternative to Verizon, and they offer at least 3G service in locations I spend some time at.
The Wilson Cradle is also a good idea - I had not heard of them before. I was worried because my flip-phone does not have an external antenna jack, but it appears to "couple" the signal and then re-amplify it.
The words of caution about MiFi data rates vs. cable and DSL are also very valuable. Although I don't hog a lot of bandwidth, I would hate to return to the aggrevation of dial-up.
Sounds like I might want to try it in a variety of places before canceling any other service.
Has anyone used a Magic Jack with MiFi?