Holiday Party Help

We're looking for someone to help with our holiday party on the evening of Friday, December 16, 2011 4:00pm - midnight. Expecting about 80 guests over the course of the evening, and we'd like help just before the party starts getting things ready (setting up food and drinks, decoration set up, running errands,etc.), during the party (checking in guests, a little photo taking and help clean up). We're looking for someone who is reliable, cheerful, proactive, friendly, and responsible, with prior experience doing similar work.