Thanks for the welcome and the encouragement!

Well, actually I hadn't ridden a bike since commuting in college, which was a long time ago! I have modified my diet, but what has mostly doe the trick is cycling a lot - I try to do 20+ miles twice a week, and another 30+ on the weekend, and a lot of walking. My metabolism seems to require lots of steady exertion. Although, in the last few weeks, with my cycling distance increasing, the weight loss has stopped - I guess I'm getting more muscle now. Clothes are still looser, so I'm trying not to get discouraged, and just keep riding!

I have a sturdy road bike (Specialized Sequoia), and it is a little heavy, but I'm not going to worry about that until I'm a lot less heavy!