I have been riding a mountain bike for over a year and have loved it. Now I would like to buy either a road bike or a hybrid. I would love to get recommendations from you ladies.

A little about me -
I bought a mountain bike last year thinking I would just be riding off road. Now I only ride on road - yes on my mountain bike and I'm ready to get a bike made for the road. I know it will make a tremendous difference! I like to take road trips of usually 20 - 50 miles with some rolling hills. I've done one century and plan to do more. I would like to have a light bike because I'll be getting it in and out of my van for rides.

Please give me your opinion on what kind of bike would suit me best, a road bike or a hybrid. I look forward to hearing from you!