I have a Viewsonic VP920b and love it.  If Milliseconds are important to you than you need to know the following.  

Make sure the value of MS is for Gray to Gray and not Black to White.   Black on an LCD is means the Pixels are OFF and White ON, turning Pixels ON and OFF at high speeds is not a problem.  However switching from one shade of Gray to another Shade of Gray is harder to do and would take longer.

So if you want a Monitor that is 5MS make sure that is Gray to Gray and not Black to White.  Gray to Gray is a better measure of Speed.

Now one of the neat features of my ViewSonic is that I can rotate the monitor from Landscape to Portrait...people doing desktop publishing or working with legal documents would make good use of this.

In my case, I love playing Arcade Classics using the M.A.M.E Emulator so for example Donkey Kong, Pac-Man, or Galaga are meant to be played on Portrait mode.