I keep meaning to remind eligible Hugo nominators (i.e., members of this year's or last year's Worldcon) to keep "Inclination" in mind in the novella category. Asimov's, April/May 2006.
(Hey, paulmelko's novella from the same issue, "The Walls of the Universe," isn't bad either, if you must nominate something else.)
What else did I nominate? Let's see...
Novels: Crystal Rain by Tobias S. Buckell, Rainbows End by Vernor Vinge, Red Lightning by John Varley, The Road by Cormac McCarthy.
Novelettes: "From Wayfield, from Malagasy" by Robert J. Howe, "A Flight of Numbers Fantastique Strange" by Beth Bernobich, "Except the Music" by Kristine Kathryn Rusch.
Short stories: "Kin" by Bruce McAllister, "The Osteomancer's Son" by Greg van Eekhout, "Are You There" and "Girl in the Empty Apartment" by Jack Skillingstead, "Impossible Dreams" by Tim Pratt.
Long-form dramatic: A Scanner Darkly, Pan's Labyrinth, V for Vendetta, Renaissance, Deja Vu.
Some other random categories:
Fanzine: Electric Velocipede!
Best professional book editor: Jim Baen will win, and the usual suspects will be nominated without my help, but I think Jim Minz and Juliet Ulman are doing interesting work at their respective houses, so I nominated them.