Thanks Gardyloo and nineworldseries (and Missy) - thanks for the suggestions. We've opted to only rent a car for one day (Enterprise will pick you up!) so have to narrow it down as to what to do on that one day. The Hampton Inn has a shuttle from the airport, and we've got a day and a half to explore on foot.
I love how you can pick a city out of a hat and find so much you never knew existed!