Hi Michele,
I'm probably riding the same bike you are, a Cannondale hybrid. I like the upright bars, but get tired of limited hand positions after about 20 miles or so. I'm saving up for a Terry Classic, which is a road bike with upright bars. They also make a more expensive model, the Madeline, but that's way out of my price range. My hybrid is great for the local canal towpath, but slow on the road. When I want to ride with others, I'm always the slowest one. So I'll keep the hybrid, but hopefully soon will have a road bike as well.
Good luck-let us know what you decide to do.
marys
Bike will get you through times of no money
better than money will get you through times of no bike.
(Don't know who said it first, but it's definitely true!)