If you're interested in taking full advantage of the Motorola DROID, you might consider purchasing the two DROID accessories that extend the functionality of the DROID.
The first is the Phone Holder for DROID which can provide a great place for you to store your Motorola DROID while you drive and mimics a typical standalone GPS-unit. This is obviously great for using Google Maps Navigation in Android 2.0 (Droid ships with 2.0) and the unique aspects of Google Maps. The Phone Holder for DROID doesn't have any pricing and is not available yet, with only a vague 'Coming Soon' date listed. In the mean time, the Android Central store has great options for car docks that you might be interested in.
The second accessory is a Multimedia Station that can best be described as a dock that turns your DROID into an all around multimedia powerhouse. The Multimedia Station allows your DROID to display photos and movies, play music, shows the weather and time, and works as an alarm clock, all while charging your phone. We have to say, the Multimedia Station looks like a very tempting purchase and could be highly useful on either a desk or a nightstand.