Answer to: Three monitor setup for Mac Pro 2008?You can add a second graphics card to it. I have the same unit, though I'll be upgrading it soon. The second card I installed some time ago, is an ATI Radeon 5770 1GB. I checked, and it's available from Amazon through it's resellers. That card has a DVI port and two mini Display ports. It will drive two monitors simultaneously in addition to your original card driving a single monitor. Shouldn't be a problem. By the way, the card mentioned above is dual width. It'll fit in one slot, but it is huge - full length, full height, and it requires power from the motherboard. Read the docs that come with it. Eric J.