Ringling College of Art and Design is the number one computer animation school in the U.S. Their Game Art and Design major is included in the school's Computer Animation department. Their curriculum is unparalleled and they recently licensed Crytek's CryEngine2; which if you didn't already know, was used to make Crysis, which may be the most graphically advanced game on the market today.
Ringling has ties to a lot of major gaming companies including EA, LucasArts, Activision, Bioware, and others. Additionally Ringling is accredited by the National Association of Schools of Art and Design (NASAD; http://nasad.arts-accredit.org
) and the Southern Association of Colleges and Schools (SACS; http://www.sacscoc.org
). I am currently attending Ringling and am part of it's first Game Art and Design class, I cannot recommend it enough. Oh and Ringling equips each in coming student with a brand new MacBook Pro to use through the 4 years, just another bonus.