Hi, I currently have a 15inch MacBook Pro with final cut studio, I use an external HD monitor for my main editing and the MBPs display for secondary. I am running out of screen real-estate for my secondary and want to get a 3rd monitor. The only problem is that there is not way to upgrade the graphic cards in the MBP. My question is: How can i have a total of 3 displays all displaying different images(ie. not mirrored). Thank you for the help.