NBC is having another live auction from Jan 20 to Jan 30.

From Heroes are some items like: Isaacs Painting Outfit, Giclée of Niki Pounding on Door, Comic of Ando Dead, Giclée of Claire on Autopsy Table, Giclée of Dead Horn-Rimmed Glasses, Giclée of Sylar standing over Issac... plus more.

More info here:
http://heroesmedia.blogspot.com/2008/01/nb...ve-auction.html

Or NBC's Auction Store:
http://www.nbc.com/auctions