Hi. I have grown to tall for my current bike and thus want a new one. I have no plans for racing or crazy off the road sorts of riding. I just want a decent bike for around town riding, exercise and that kind of stuff. I don't have a large budget, but as I said, a decent bike would be good. I'm between 5'5" and 5'6", and I know that I need to try out a few bikes, but would you recommend somewhere to start in terms of brands and sizes? Thanks.