Wegcash has pics of the hour. They've got a bunch of different categories to choose from. You'll have to judge the quality for yourself. They look pretty good to me though.
http://www.wegcash.com/?wm=evildick
Gotta love the fact that they have an "ugly" pic of the hour too. I bet it gets the most click throughs.
Topbucks also has daily galleries, but not daily single pics.
http://referral.topbucks.com/clickthru.cgi?id=evildick