Thanks for the continued thoughtful, helpful replies to my questions. I've got a haircut appointment tomorrow just a few blocks away from our closest LBS. Sounds like a great day to start checking out the options and maybe test ride a bike or two! I just need to keep telling myself to take my time, do the research, and look for a good price. I'm sure I'll be back with more questions.
Torrillin, I appreciate the link about gearing. I don't understand the difference in different types of gearing at all. I'll sure check this tool out.
"I learned what every dreaming child needs to know - no horizon is so far that you cannot see above or beyond it." -- Beryl Markham, Aviation Pioneer