I read some where, not sure what article it was, but testing showed that the new, up and coming, LG 120Hz display has an option to turn on that reduced input lag to ZERO. I remember reading the article and it was stated that this feature was not turned on by default which the author wasn't sure as to why this was the case.
I will see if I can find that article for you. I don't think this LCD is out in the US just yet though.
Yea the only thing with the LG monitor though is that its only available in the UK and the surronding area. The best availability date that LG is giving for North America is MAYBE some time in 2011... Thats the last I heard, could've changed in the past few weeks, who knows. Dont even know why LG would hesitate to release it on this side of the hemisphere.