Depending on the type of riding you're interested in and your physical condition, the Townie bicycles are a real fun option. Both my parents purchased Townies a couple of months ago and have been very pleased. Two big advantages of the Townie:
- Upright riding position that is very easy on the back
- "Flat foot" approach - when you stop, you take feet off pedals and they are flat on the ground. Good control when starting and stopping.
For more info:
http://www.electrabike.com/04/bikes/...wnie_home.html