I don't know how good TN panels are in terms of such work, but you may have a look at Dell's e-IPS panels. I am referring to U2211H and U2311H. Check out this thread:
Finally, some affordable IPS panels!
It is about 2k over your budget, but it is worth having a look at, since IPS panels are much better the standard TN panel monitors you may buy.
In any case, all TN panel monitors are pretty much the same, look for Dell, Samsung or BenQ models. For IPS panels, I have linked you to the thread.