I recently got myself an LG W2442 for about $300 I think(can't remember exactly!).
Calibrates very well, is not IPS, but IPS is not the be all and end all in panel technology.. it's just good.

The main point is can it calibrate well, and it seems many current gen TN type screens are very capable.

You have the One Eye, so at least you can calibrate it well.

if you have about $400 to spend, get the huger 27" W2753V version.. because bigger is better.

MSY sell them.

note: does your PC(or graphics card) connect to a screen via HDMI cable. I noticed that once I switched to the HDMI connection(from DVI), it allowed a few more screen settings adjustments(like gamma adjustments and blackpoint brightness), which ultimately allows for a more precise calibration too.

if you can justify the price, Dell's U2410 is apparently very good, and allows for a slightly more accurate IQ. If you can afford, or justify that $700 price tag, then this is the one to seriously consider according to two reviews I've now seen.
I reckon there's a very good chance that will be my next purchase.