For those who like LCD Soundsystem, try giving the Rapture a try. I've read through this thread before, and don't remember them being mentioned. Supposedly they were discovered by LCD Soundsystem as well. They have that same type of "electronic" sound, for lack of a better word at the moment.
http://www.myspace.com/therapture
Also just saw the National Tuesday at Rex Theater in Pittbsburgh. If they are hitting your city, or one close by, definitely check it out, they were amazing and played almost all of Boxer, alot of Alligator, and a few from the S/T. Easily the best show I've seen