Get a Ram Mount laptop bracket. The shaft can be removed quickly.

I would suggest a puck receiver over a PCMCIA. It can be mounted on the dash and get you better reception than the PC Card style.

Here is the puck I got and I love it. Very accurate and cheap. The only thing that could make it better is a longer USB cord.

http://www.newegg.com/Product/Product.asp?Item=N82E16858196005

If you have any specific questions let me know.