If you're looking for a multi-monitor setup, I'd get two of the same monitor. And you may wanna look into bigger ones as well is space is a concern for you (or maybe even just one larger one for starters, and then buy a new one in the future).
Also, if you buy one of the new 5000 series Radeon HDs, they support three outputs, as opposed to two - the cheapest ones are around 120$ right now, but I'm pretty sure the next set of lower-end ones are launching soon.







