I stumbled about something odd today. The PDFs from Faster Monkey Games are free now. I don´t know why, but as far as I have seen on drivethrurpg.com, all of their PDF are up for grabs.
I only own one of them so far (Re-Energizers; and bought it back then), which was a Mutant Future(tm) compatible title, but from the looks of it they have a lot of OSR material. So, go over and start looting, folks!