I've been looking for the same thing, I think I upgraded my mobo to DDR2 about 3/4 years ago and now want to up the RAM, but the price for DDR2 is crazy and surprise surprise I've got spare DDR3, DDR, SDRAM sticks laying about from working on peoples PC's but no DDR2 and I'm refusing to upgrade as spec wise I'm happy with my P4 and PCI-E mobo running a GT520, just the ram is what I could really do with!
Unless I can get a new DDR3 mobo that supports the 478 socket
