Thanks Denise and neuroticcyclist. You both brought up some points I hadn't really thought of.

I'm coming to the realization that I'm proably going to have to make more than one road trip to a big city. I really only have one day down in OKC, and that may not be enough time. Especially since neuroticcyclist is right, I don't know what size of road bike would really fit me. And I'm typically indecisive anyway.

So I'll go get fitted (either at my local shop or somewhere else), then hit every bike shop that's within a day's drive or so of my area. Hopefully I'll be able to make a decision before the weather starts getting bad again this fall.