I heart alternative transportation and support your choice to walk, bike, board, carpool, or take some sort of public transit (however difficult that may be in Hampton Roads).
If you're thinking of trekking around on two wheels...excellent. Biking is one of those multi-level activities that not only gets you from point a to b, but also provides exercise and outdoor enjoyment. Plus, you get to see some cityscape that you probably overlook as you zoom past in a car.
Practice safe biking. Bicycle Safe's website helps you to not get hit by a car. Give it a read and enjoy a wonderful, energizing ride. http://bicyclesafe.com/