I'm looking to buy a Panasonic Pro AG-HVX200 camera. Am I going to be able to transfer footage from P2 card to FCP? I've heard problems occur? Anyone able to share their experience? Thanks.

Its easy with version 5.4 and up.

There's a driver you can Download from Panasonic website and you can just go to 'Import > Panasonic P2 > The folder with your files' and it will convert them all.

Easy peezy, kinda.