Glad to know you've succembed like the rest of us. At 5'4" you should be able to get a stock bike. I'm just under 5'4" and had a Marin Larkspur that I really liked. It was no lightweight compared to expensive road bikes but it wasn't bad for the money. It weighed 26 lbs after I put some narrower higher pressure tires on it so it would roll better. If you're going to stay on the pavement, a 700c wheel will roll more easily than a 26" mtb wheel.