anyway to store printscrn screenshots in a folder?

I was wondering if I could edit the registry or something so when I hit print screen it puts the screenshot in a designated folder so I can hit print screen multiple times without having to paste the screenshot into mspaint and then save it. I don't know if this is possible but it would be nice. Or if someone can find me a program where I push a key like F9 or something and its puts them into a designated folder. The reason I want to do this is so when i am playing games I can take screenshots without having to alt+tab

lots of the programs are game specific, because allot of times the standard printscreen button will come up with a blank screen during games.

google it...

http://www.any-capture.com/ (about 10 seconds)

It's one of the features included in mobydock, which is a nifty free program.

k thx guys