[Diego Garcia]"but what cable/connector do I need for the HVX to view playback on a tv?"
Your camera comes with Component cables...you can use those. There are also regular RCA connectors (like you see from VCRs to TV), and also an S-Video connection.
[Diego Garcia]"I am thinking of getting an Apple Cinema Display. what cable will i need to just playback and watch what i shot with the HVX?"
Nope...that you can't do. THey do not share a common connection type. BUT...if you get a Dell 2408 (better monitor anyway....OH, and the Apple displays have been discontinued) they sport a Component connection.