I just ordered my 27" iMac and I want to get things ready for when it arrives. I have a 22" Samsung monitor (VGA and DVI-I ports) that I want to hook up as a secondary monitor but I am not sure what kind of adapter I need to get everything connected. I've seen the minidisplay port adapters at the store, but I'm not sure if that's what I need. Can those be plugged into the Thunderbolt ports? If anyone can help me out, I'd really appreciate it. Thanks so much!