Canon Europe has set up a photo competition creatively called "The Assignment". Entries are to be submitted online, and there are four categories to choose from: Portrait, Landscape, Sport, or Macro photography. The prizes include EOS 40D cameras and various lenses, as well as other prizes.
As in all contests, it's highly recommended that interested parties read terms and conditions prior to entering. This one is no different.
Even if you're not interested (or not eligible), I suggest visiting the site. The entries are to be judged by award-winning photographer Vicki Couchman (whose work I don't know), but there's a short clip of her working in the field, and she's quite attractive...well worth a visit.
By the way, the competition's logo is of a photographer holding the camera for a vertical shot...but who holds the camera that way?