Hi all, I've been doing some googling, and I wanted to see if any of you have experience/thoughts on a setup I'd like to have: 2.7 GHz i7 RMBP w/650M 1024MB running an apple 27" thunderbolt display (I already own this) AND another, second display running at the same time, but oriented vertically. What would be a good option for a second display that would be compatible with that setup? Is it possible to mix thunderbolt and non-thunderbolt displays in a multi-display workstation? Many thanks! Edited to add: this will be used for composing and arranging music (the old way, not as a DAW) and for some very light video editing, so I don't think 4k or higher is necessary, though I'd be happy to entertain using one at that level!