Nick,
You will need the necessary P2 Drivers that can be downloaded for free from Panasonic’s website if you dont have them already. Im not 100% sure on the Mac OS but from my understanding the only difference between running Windows and Mac when importing is the type of cable. Mac (Firewire) and WIndows (USB). Very important step is to make sure that when your HVX is in P2 mode it is to set to the PC/DUB mode on the back of the camera. Press and hold it for about 5 seconds and the screen should turn blue and wait a few more seconds in which the computer should recognize it.
Once the camera is connected the P2 cards should appear under the computer as removable disk space. For now just click and drag those into your desktop. You’ll also need to create a folder on your desktop and title it “P2 Files” or anything that will make it easy for you to locate later. Open up the dragged files from your computer and open. Simply take the CONTENTS folder and copy/paste or click and drag into the newly created folder. This process will save the P2 the files to your computer.
Lastly to import the files to Premiere Pro, Open Premiere, Click File and go down to Export, Select your Desktop and then the Folder you created. Open the contents and select Video then Import. This may take several minutes depending on card size but after its complete your footage should be visible in your project window and you can start editing.
Hope this helps and Good Luck. AH