I've just received a 19" display and I'm trying to figure out how to attach it to my 13" MBP (mid-2012). The display (1280x1024 native resolution) has DVI-A, DVI-D and D-sub connectors (I believe the latter is the analog "VGA" standard if I'm not mistaken). I've never used Thunderbolt before, but according to the (rather limited) documentation I need to buy a Displayport-DVI adapter for my setup (which are both digital I believe, so I won't get any signal loss as I would in a digital/analog conversion process). Apple's offering is quite costly, and I assume there's plenty of similar devices to choose from on eBay, Amazon or whatever. Does it make any difference which adapter to get?