Hi I'm Lucy. I haven't been on a bike in over 20 years but I'd like to get start again for my health as well as the environment. I'm looking at a road bike. There are two bike shops within 10 miles of my house. One suggested at Specialized Sirrus and the other a Giant Tran Send DXW. I should add I'm a short woman 5'1" with a budget of $500-600. As I said I haven't ridden in many years and the terrrain here is pretty flat with a lot of winding roads but fairly smooth paved roads. I'd like to stay with a bike shop rather that internet purchase as I know I'm going to need help. I'd appreciate any help/suggestions.