I used a hybrid last year for my first year of college, and it was great. Had a Trek 7.2FX, and I did weekend jaunts, usually no more than 15-18 miles, which I found to be about my limit on physical comfort on a hybrid. I ended up getting a road bike for just getting out and riding. I never had a problem with locking my hybrid up, by the same token, there's lots of nice bikes on campus that people use for commuting, so mine's not going to be on the top of the grab list. Also had a U-lock.
Anyway, if your campus roads are anything like mine, a road bike is going to be a bit of a neck-jarring experience. My roommate got a sweet deal on a 98 Trek 6000, converted it to drop bars and bar end friction shifters, all shimano 105 components and it is the ultimate in campus commuting. Comfy on 20 mile rides, too. All that said, I'd suggest a hybrid for what your wanting. No way I'd lock up my road bike on campus. Not even if you paid me.