Artprize is upping the ante in 2010. The contest is hardly a year old, and this year is adding four juried categories to its voting process, which is currently determined by a public vote. $449,000 will be shared by the top 10 artists, and a minimum of $5,000 will be awarded for each juried prize. If you’re an artist trying to make a run at the cash, registration ends at 5 p.m. next Thursday. Artprize takes place September 22 to October 10.