in the market for a monitor and have ?s

[demon102]

How is this monitor
has 700:1 contrast ratio and 12 ms response. Can someone explain responce time to me and what would be a good response time? after looking at all this Im guessing the less the number is the quicker the response is.
http://www.circuitcity.com/ssm/AOC-2...oductDetail.do

here is anothr interesting one
http://www.circuitcity.com/ccd/produ....do?oid=146746

how do they compare with this dell that is in the sticky
http://accessories.dell.com/sna/prod...p;sku=320-4687

[ShipitFMA]

I think a good response time is < 8ms, from my limited knowledge i dont think > 8ms is very good