I don't know. I have a 25ms panel (Samsung 192t) and I don't see any ghosting in C&C Generals, Raven Sheild or Battlefeild 1942.
Since the 16ms or 25ms or whatever the number happens to be is just a rise and fall time for a certain sort of operation I would look at the overall panel before ruling out 25ms ones. I can certainly recommend the 192t as a great gaming panel. And other then the brand new Dell that just came out it has a larger size then any current 17" 16ms panel, which is just too small for me. This is my first LCD and I have used nothing but high end 21" and 19" CRTs before this, so going to 17" just wouldn't do. After this LCD I don't think I will ever go back to CRTs. Just my 2 cents.