Which casemate do you have?
The Zenis desktop dock will cater to most cases, it fits the official case as well as my Walnutt bumper case. eBay for purchasing one
As for the car, fashion a DIY one following my guide or buy a Nokia CR115 as it's equally good.
casemate tough case is the one.... actually I did remember following your Nokia guide.... I even ordered it and its in the packaging in the car from the day I got it!
never got round to doing it...
thought they might be something similar to the brodit by now .... that clips onto dash.... Ill relook at the cr115 guide if theres nothing better
