Depends on what you want,like do you want AG or shadowmask tube ,and do you need it to do 85hz@1600x1200?
The Viewsonic G90FB is a very good 19" shadowmask,
specs . also I`ve heard good things about the ImageQuest Q910
specs .
AG wise the Iiyama VM PRO 454/455 are good choices along with the Mitsubishi Diamond Pro 930SB .
Good luck in narrowing your choice down.