Bloodsire was unexpectedly cute.

Maybe Crash can teach me to make not terrible maps.

If you are willing to deal with some sketchy korean brands, the Qnix qx2414 is a 24" 1080p monitor at 144hz. I've overclocked mine to 160hz, I've got it to 200 hz with some async problems. I'm using the DVI only version.

Positives:

It overclocks well
its DVI only, with no scalar so it has very minimal input lag, supposedly comparable to benQ.
VESA mount
Price : 150$ is hard to beat at 144hz.

Cons:

It's a sketchy Korean brand that basically buys the panels that didn't pass QC tests at samsung/benQ and such.
Even the "pixel perfect" monitor can have up to 5 dead pixels.
It has the worst fucking stand ever, you have to VESA mount this thing, and that requires opening it up.
back-light bleed varies, and isn't too hard to fix, but still sucks.
Mild scanlines with overclocked.

Other:

The version I have doesn't have an OSD, so color correction is done through gpu control panel, which has it's problems.
The monitor comes way to bright, drop the gamma from 1 to like .65 or something.

I've got a little experience map making. I'll dick around with it, but someone should get a real map maker on it.