tdgeek: PS3 noob here.

I have it for one reason, F1 2012. But I wish to venture further, gaming wise. Is the HDD in the PS3/4 just for downloaded games and purchased movies? Can I install a game onto the HDD to avoid using the disk?

I believe this is how it will work in both new generation consoles, though with 4K likely to become more popular a 500GB Hard disk isn't likely to last long.

I doubt we will see 4K games. We were lucky to get 720 games this generation and they are all about 1080 for the PS4. Did you see it mentioned somewhere?