Id get one too but you need to make it avail to residents outside the us.
If it takes a few months to put it together then using the bpom, hotm, etc pics wont work since we wont have enough pics in time. I think there should be a seperate contest run over a few months to get enough images. Maybe run it for 3 months and have 4 different pics win each month and theme it. for eg start in feb and have it so people can enter 4 pics 1 for each catagory. like happy new year theme for jan, valentines for feb, spring theme for march, easter theme for april. then do the same for the next month etc.

I see this done on another forum and the admin picks the top 5 or so pics as runners up and then sets up a poll for those for people to choose from.