Hi, I'm looking to buy a Samsung SyncMaster T240HD but my main pre-sale question is if I can connect both my PC and my Mac to it at the same time and switch between the two with a push of a button? I know it has a VGA and a DVI and a couple of HDMI inputs. So if my PC is connected via VGA and my Mac via DVI, can I press, say, the "input" button to switch display modes between computers? Thanks.