These are the Categories where Lost will be competing for Emmy's this year.
Outstanding Cinematography For A One Hour Series
Lost • The Constant • ABC • ABC Studios
John Bartley, A.S.C., C.S.C., Director of Photography
Outstanding Drama Series
Lost • ABC • ABC Studios
Outstanding Music Composition For A Series (original Dramatic Score)
Lost • The Constant • ABC • ABC Studios
Michael Giacchiano, Music By
Outstanding Single-camera Picture Editing For A Drama Series
Lost • There's No Place Like Home (Parts 2 & 3) • ABC • ABC Studios
Henk Van Eeghen, Editor
Robert Florio, Editor
Mark J. Goldman, Editor
Stephen Semel, Editor
Outstanding Sound Editing For A Series
Lost • The Shape Of Things To Come • ABC • ABC Studios
Thomas deGorter, M.P.S.E., Supervising Sound Editor
Paula Fairfield, M.P.S.E., Sound Editor
Carla Murray, M.P.S.E., Sound Editor
Maciek Malish, M.P.S.E., Sound Editor
Lloyd Jay Keiser, Sound Editor
Joseph Schultz, Sound Editor
Jim Bailey, Foley Artist
Cynthia Merril, Foley Artist
Alex Levy, Music Editor
Outstanding Sound Mixing For A Comedy Or Drama Series (one-hour)
Lost • Meet Kevin Johnson • ABC • ABC Studios
Robert Anderson, Production Mixer
Frank Morrone, Re-Recording Mixer
Scott Weber, Re-Recording Mixer
Outstanding Special Class - Short-format Live-action Entertainment Programs
Lost: Missing Pieces • ABC.com • ABC.com / ABC Studios
Damon Lindelof, Executive Producer
Carlton Cuse, Executive Producer
Barry Jossen, Executive Producer
Outstanding Supporting Actor In A Drama Series
Lost • ABC • ABC Studios
Michael Emerson as Ben
Source: Full List@Emmy TV