If you're looking to flesh out your library of PSN games (and you should, because it has some wonderful games) you'll want to take special note of this sale. The highly lauded developer of games like "Monsters" and "Shooter" has announced they will be putting many of their games on mega-sale.
Some of their earlier titles like Racer, Monsters, Eden and Shooter are now available for the absurd price of $1. Which is undoubtedly the best $4 you can spend in video gaming.
Their newer titles, Shooter 2 and Sidescroller are also on sale for the great price of $5, which is 50% off the normal cost. The sale will last until May 18 when their new title, PixelJunk 4am, launches.
If nothing else, do yourself a favor and go try Shooter and Monsters, as they are two of the best downloadable titles of this generation, and an absolute steal at $1.