Reading this thread with interest as I too just purchased my first road bike (riding a hybrid prev) and took it on its first 'real' ride yesterday. Goodness, after about 15km I stopped and my arms were so sore and stiff from holding on for dear life!

I nearly toppled when going across a bridge on the pedestrian section and the wheel went through a vertical 'ridge' in the pavement - those darned skinny tyres seem to want to be eaten up by those sorts of things. Then I had another freakout when I had to turn and wind down a ramp off the bridge - the other cyclists seemed to be looking pretty wary at my wobbliness! It was exciting but quite nerve-wracking how differently it handles from my solid heavy old hybrid - quite squirrely and skittish.

Am really hoping it doesn't take too long to adjust to - have signed up for my first metric century in October and really want to take my lovely light fast road bike along rather than plodding on the hybrid!