If you were possibly wondering, I did NOT take the school's DSLR camera along on my trip to D.C. ... I can't afford to replace it if it's stolen or damaged, and I certainly wouldn't be able to explain to the school's administration why I took the camera along on a personal vacation trip.
I figured my little Canon Powershot A1000 would be adequate to meet my photography needs, and I guess it did just fine. There were a few shots I might've been able to pull off with the Nikon D80 that I wasn't really able to do with the Powershot, but all in all, it performed admirably. Plus, it was much MUCH lighter to haul around while sightseeing.