Yeah the mini works like any other iPod on a dock. The mini is great because it's one of the few that you can change the battery and storage in yourself easily. I've got a 64gb card in there right now. People always ask me why I still use the old mini when I have an iPhone. To me there's something special about having a device only devoted to music and nothing else. There is no text messages or phone calls to get in the way of my listening.
Which card if you don't mind me asking? I still use a dedicated device as I a)hate mobiles and b)not allowed cameras in the work place.