I love drop bars for commuting. One caution: Many bikes are equipped with drop bars and cantilever brakes which often has a negative effect on braking distance, so be certain that your brake levers work with whatever calipers you have on the bike.

At the first ripping headwind you have to fight, you will REALLY appreciate those drops! Also drop bars are generally narrower than straight bars making it much easier to split traffic lanes during gridlock.