I deal with the same problem. emoticon.BigSmile.title
Like anything else? Maybe a HP, NEC, Samsung ... something like that? ... IPS, 24", 16:10, good RTC and build quality around $600 each?
I need: 24" IPS (1920x1200), light AG-coating (its look amazing!), no visible overshoots, and wide color gamut.
U2413 meets all my requirements, but totally fails for me in responsiveness (strong RTC)... but RTC is just software (firmware) problem, so there is little chance to be patched.