Locus Online has the details of the final Hugo and Campbell Awards ballots. The awards will be given out at Nippon 2007, the 65th World Science Fiction Convention to be held in Yokohama, Japan, August 30 - September 3, 2007.
Except for "The Walls of the Universe" by Paul Melko and "Inclination" by William Shunn in the Novella category there is no overlap in the written fiction categories between the Hugo nominees which are selected by fans attending the World Science Fiction Convention and the Nebula Awards ballot voted on by members of the Science Fiction & Fantasy Writers of America.