In the Women's Cycling section of the forum, there was a great thread about choosing a bike for a woman. In particular, the response by lovemyswift was awesome. Check this out:
http://www.bikeforums.net/showthread...threadid=31657
I say print this out and take it to the bike shop and see if you can find a good road bike based on the specs lovemyswift said.
Good luck!
Koffee