well, I am spending money on it, so I want to match the DPI of my M90 cause the picture quality is amazing. But to get 130 DPI it would have to be a 17" 1080p (about 1% off to the low end) or 22" 1440p (was slightly over at 133 DPI iirc). I definately can not go very big at any point as I only have 20.5" laterally to fit it in. the 19" I have now is about 3.25" smaller than the space.
And for the cooler I figured if I go to the loop setup then I could easily upgrade to a full loop on the GPUs, chipset, CPU, mosfets, HDDs, and RAM later on, a little at a time. But again, If I go for the H100, then I can get a monitor and 680 august, a 680 September and a full water cooler in October probably. :/ I don't know, either way will run fine.