One of the biggest trade show and photography convention which is held yearly, PhotoWorld Asia 2011. The event will be from January 27 to February 1, 2011 at the Glorietta Activity Center and Asian Institute of Management.
I attended this event in 2007, they will be bringing back Master Portraitist, Hanson Fong and will feature many other foreign and local speakers. The trade show in Glorietta will also feature all camera and accessory manufacturers which give sale on photography-related items.
More details about this event at http://photoworldmanila.com/photoworld-asia-2011/