Left 4 Dead 2 fans with two or more fingers and access to a camera will be delighted to learn that Valve is issuing a sequel to the Left 4 Dead-themed contest it ran last year, now with improved prizes.

The "Dude, Where's My Thumb 2" contest rules are pretty simple. Take a photo of yourself in front of one of the many outdoor ads currently plastered across New York, Chicago, Los Angeles, Seattle, Miami, Phoenix, Dallas, Minneapolis, and San Francisco, exhibit some creativity, submit your photo and cross those two aforementioned fingers. Last year's winner was this guy, so do better than that.

The winner of that contest gets a custom "infected" Xbox 360, which is hand-painted, laser engraved and custom designed. 25 runners-up get Xbox 360 copies of Left 4 Dead 2 autographed by Valve team members..

The only downside here is that PC gamers appear to have been left behind. But you're getting used to this level of disappointment, right PC gamers?

You have until November 15 to make photographic magic happen. Full details at the official Left 4 Dead site.

Dude, Where's My Thumb 2 [L4D.com]