Every once is a while I find a web site that really helps me improve my travel life. SeatGuru is one of those sites. If you travel as much as I do and want to know the best seats on the plane to select, SeatGuru has is all.
Go to http://www.SeatGuru.com and select your airline and you will be presented with a list of all the plane configurations. Pick a configuration and they will give you a seat diagram and then tell you the features of each seat (audio, video, power plug, infant features, etc), any issues with leg or storage room, and other things like where the lavatories and galleys are on the plane.
I have not found an airline or plane configuration they do not have. This is must have information when traveling internationally and you want to make sure you have maximum leg room and a power port on your long flight.
Hope this information helps you have a more comfortable flight...