Okay, so I'm looking at video cards for my Mac and I'm trying to understand the full list of supported Video cards -- Nvidia based. The Mac Pro has a PCI-E slot which means it can use a slew of high end cards, but will they work? Looking over Apple's store site, the only cards I could find, being supplied, are the 7300GT (default) and the 7600GT (only in the high end iMac). Can I use a 7600GT in the Mac Pro? What about a 7900GT or even an 8xxx series card? Will I need to get any added drivers if I get a 7900GT (or above) or can I? I've already looked and Nvidia doesn't supply video drivers for OSX. The closest they have is FreeBSD.