While I was attending Fanime this year, a rover suggested I volunteer as a photographer since I enjoy taking photos of the events and cosplays that happen at this con. Is the volunteer section for this going to be put up sometime soon? I am interested in joining.
Please note that there is a difference between staff and volunteers. Some discussion of the differences have taken place in this thread (http://forums.fanime.com/index.php/topic,17639.0.html). If you are interested in volunteering you just head to the volunteers room at-con (no advance notice needed). If you want to staff departments are starting to post openings in this thread (http://forums.fanime.com/index.php/topic,17555.0.html).
The only department I know of (there may be more) that utilizes staff photographers is Cosplay Gatherings so you could also try contacting (http://2012.fanime.com/about/contact/) them.
Marketing may be interested in bringing on more photographers, but I have no idea. Please email me (below) and I will direct you appropriately.