I'm looking for a decent supplement graphics card that allows me to hook a second external monitor (cintiq 21UX @ 1600x1200) to my 2008 MacbookPro 4.1 (Penryn). Ideally, I'd like to use the expresscard slot for this purpose. I've tested a low cost USB device already, but it's refresh lag is too bad. That said, I certainly dont need it for gaming. Just the usual office and design suites. Any hints/advice are very much appreciated.