I went ahead and bough both docks and a spare battery. I figured that I might as well since I'm spending that much on the phone anyway.

I've been very pleased with both docks. They both serve their purpose well and I believe that they are both reasonably priced (I know that some people complain about price, I think they are wrong).

I also use the car dock vertically to avoid the lack of horizontal orientation for some features (contact list, for example). Navigation works just fine vertically.

Still trying to find a good application to keep the screen on properly when in the car dock (trying some, might have a conflict between them).