Me, Mac?? Hahahaha, not unless I have to, though thanks for the laugh.on a mac you can partition the drive and use windows program in the partition, ask George he runs a mac http://quadcopterforum.com/members/gjh105775.340/
I usually run Linux, I'm afraid that you are limited by whatever your camera can handle. For optimal on a MAC I'd suggest HFS+ or second EXT3, but for your camera and Mac to use I'd suggest FAT32, also remember that your files cannot exceed 4GB while using FAT32.