Considering the un-ending delays in the new MacBook pros, I'm coming up at an inconvenient time to be replacing my monitors. System is a CTO 2011 2.3GHz, AMD 6750M 1GB dGPU, matte screen 1680x1050. 16GB RAM, TB SSD .. most of which doesn't matter as much as the dGPU and Thunderbolt 1 port. I don't have a dire 'need' for 4K, but do put QHD (2560x1440) to good use - picked up a BenQ 27" for one of my pair of work displays, subsequently had DisplayPort issues with it, so am replacing that with a ViewSonic but also considering 'final configuration' for both work and at home. I've tried without much success to confirm if I can drive a LG 34UM88-P 34" or similar UltraWide QHD display (3440x1440), while I'd continue to use USB displayport to drive a second 1080P display? For anyone following along, the 27" QHD display is nearly perfect for 'getting work done' and font sizing, etc...for me, but I fairly often have to zoom in when showing the screen to someone..I have a feeling 30" is in the sweet spot overall for QHD, but the only thing close is the ultrawides...while I don't see any huge need for 4K at the moment for productivity (office Apps, Dev tools, terminals, web, ...), and my 2011 can't do 4K regardless even IF I was assured I could scale downwards (to likely QHD) with high quality on the panel..somewhat doubtful. I wouldn't mind picking up a UW QHD single display for now, then a second one whenever Apple gets around to releasing a compelling MBP 'upgrade' and driving a pair of UW QHD panels. Anyone?