I have a Macbook from 2008 that has a mini-DVI output for video. I am on the verge of buying a Dell Ultrasharp monitor that supports Displayport, DVI, VGA and USB connections. It does not have an HDMI input. From what I understand, my Mac will not connect to an external monitor via USB. And I can't find a mini-DVI to displayport adapter. So that leaves me to choose between the DVI or the VGA adapters. However, I have heard that there are problems with analog signals on the mini-DVI - DVI adapters. So, my questions are: 1) Are analog signals needed to connect my Macbook to a Dell Ultrasharp monitor (will digital suffice?)? and 2) Is VGA noticeably worse than DVI? Any comments or suggestions would be greatly appreciated (except "buy a new computer/different monitor!"). Thanks!