If you're an avid gamer and live around the San Francisco area, I urge you to check out the "Game Over: Art of the Gamer Generation" exhibit at the Giant Robot store on Haight street. Free to the public, the gallery showcases videogame-themed art pieces from local artists ranging from the games of our youth to video game violence.
If you want to check out the exhibit in person, it's open until October 29th. Also, most of the pieces there can be purchased, as it is art after all, so if you don't see a piece there, you can check out all the pieces of art at their site.
Since I last was there, more pieces have been sold, so check out the rest while you still can!