Was browsing recently and found a Droid 1 dock for 14 bucks shipped...the price was dropped since the D1 is getting older. It said that it wouldn't work for the Droid 2.
Turns out it does! In the reviews, people said it worked, and so I bought one, since a D2 dock is nearly twice the price.
Anyway, it works great, so if you want to save some $$ and want a dock, check it out.
I bought this one (link) which is $14 and shipped free. Not sure if other maker's docks work with the D2.