This week we should be seeing the (delayed) demos for 1942: Joint Strike and EA Sports' Tiger Woods 09; maybe some Civilization Revolution content as well. But the most exciting new content has to be from Capcom. Not only do we get the PS3/PSP version of the PSone classic Street Fighter Alpha, we also get the demo and full game of Bionic Commando: Rearmed. Oh and of course it wouldn't be a Thursday on the PSN without Rock Band DLC.
Looks like there may be a demo for NHL 2K9 as well.