Thanks for all suggestions and comments. I made a pit-stop at my LBS today. I will consider a road bike. I think the 2008 Specialized Dolce (black/pink) is a beauty! I'm 5'4". What size would be appropriate? I noticed the measurement is in centimeters. On the Dolce, my toes couldn't even touch the ground!!!! Are my feet supposed to be flat on the ground?

P.S. It had toe straps. Are those optional?