I figured Wikipedia would have a list, and they do:
http://en.wikipedia.org/wiki/2008#Deaths
I was shocked to see Brad Renfro on the list -- I didn't know he had died! He was such a cute kid in that Grisham movie.
Others of note:
Sir Edmund Hillary
Suzanne Pleshette
Roy Scheider
William F Buckley, Jr.
Sydney Pollack
Estelle Getty