I have a 13" MBP which I use at my desk, but I also have a larger display screen which I'd like to hook up. I have a mini displayport to DVI adapter to do this, but I also run a projector from my MBP which I use every day, so rather than be forever switching cables and possibly bending pins/damaging my hardware, I'd like to be able to either split my signal to connect both displays at once, or change between the two outputs with some sort of switcher box... Anybody have any experience with this? I've heard DVI only supports one monitor at one time, but I've spotted this for sale which looks like it will offer me the same image on both screens (which is what I'm trying to achieve). Any suggestions?