If money is on the tight side, my favorite budget monitor of the moment is the Asus TUF Gaming VG28UQL1A, which has a blistering 144Hz refresh rate that makes desktop navigation a breezy dream.
The Acer Predator Z57 is as insane as you think it is, but after spending a few weeks with the massive monitor, I'm struggling to justify the $2,000 price tag.