I'm going to be getting the 2012 base model 15" MBP. I basically always run my MBP onto a 24" external display when I'm in the house/office. However, I'd really like to use 2 displays since I do web/graphics work and am constantly tabbing between apps. I know it's possible to daisy chain the TB monitors, but unfortunately I can't afford 2 (or even 1) cinema displays, so I'm stuck with my crappy samsungs for now. Now, the MBP has USB3 ports, would it be possible to run one monitor off a USB3 port without any lag(I've tried usb2 before but it's really laggy)? I don't really want to spend too much money on it, so things like the matrox are out. Any suggestions?