Sorry if this has been posted here before, but check out this online database of bicycle routes I found. They are compiled by riders and can be downloaded to a GPS device or just printed and make for some good rides. I tried one of them last weekend and it was great. New sights and roads I would never have been on otherwise. C'mon Houstonians lets get some more Houston area rides on here that we all can share. You don't need a GPS to do it, just a good memory, but GPS makes it nice. I can't wait to get my Garmin Edge 305 now!!! I have been using a huge, heavy Magellan handheld unit.
http://www.bikely.com
http://www.bikely.com