Had that case, and the official dock. Problem is the case side's raises the phone up so a tiny bit but enough so that it'll just sit right above the charger but won't properly connect. Modifying the dock or making one seems a lot more hassle than cutting the case, so I went and cut the case's charger slot so that it's wider, and also make a long rectangular cut along the back (about aslong and wide as my pinky finger) so I can slide it into the dock (small adapter, forgot if i tried the big wider one or not, might have made the back cutout unncessary though).
I don't think any of the cases are designed to be used with the dock. All the back-only cases like this all look the same - all designed it to cover up as much as possible. And all the chinese docks look like the official dock. So i don't think there's any dock/case you can buy as a solution... unless there is one since i last check two months ago.
But anyways, to me a dock is more necessary than a case, so 90% of a case is better than no case.