It's a good thing the PlayStation 3 has such a huge hard drive: There's a grip of good stuff available today on the PlayStation Store.
First and foremost is the Devil May Cry 4 demo. You'll want to download this, if just to try out new character Nero's attacks so you're not a total spazz when you get the whole game.
Games and Demos
PixelJunk Monsters ($7.99) - This price is listed as "for a limited time" so strike now!
Devil May Cry 4 demo (free)
The Club demo (free)
Jet Moto 2 for PS3/PSP ($5.99)
Expansions and Add-ons
Folklore Create-a-Creature Winner add-on (free)
Rock Band ($1.99 each) - "Wonderwall", "Live Forever" and "Don't Look Back in Anger" by Oasis.
Rock Band Oasis Pack ($5.49)
Stranglehold Map Pack ($14.99) - Also comes in Collector's Edition style.
Need for Speed ProStreet Extender Pack Bundle 1 ($5.99) - Pay for the privilege of driving the Aston Martin DBR9, Porsche Carrera GT, Lamborghini Gallardo Superleggera, Porsche 911 GT3 RS, Lancia Delta Integrale Evo, and Dodge Challenger Concept.
Need for Speed ProStreet Extender Pack Bundle 2 ($5.99) - More stuff that's already on the disc, but requires cash to play includes the Koeniggsigg CCX, Mercedes-Benz SL65 AMG, Aston Martin DB9, Audi R8, Porsche 911 GT3, and Honda S2000.
Tony Hawk's Proving Ground - Stevie's Skater Story
Step Up 2: The Streets trailer
Dragon Wars Blu-ray trailer
Wallpapers and Themes
PixelJunk Monsters theme