http://www.bandicam.com/
http://www.fraps.com/
I believe Xfire has one built into it, totally free.
http://www.xfire.com/
There's more but I don't remember them off the top of my head, Bandicam is pretty nice though (It's what I used to make above video, first time using it, rather impressed with the output). Do not go to the website Elit3noob suggest. It's not "100000% legit". You're more likely to get viruses than anything else.
http://www.fraps.com/
I believe Xfire has one built into it, totally free.
http://www.xfire.com/
There's more but I don't remember them off the top of my head, Bandicam is pretty nice though (It's what I used to make above video, first time using it, rather impressed with the output). Do not go to the website Elit3noob suggest. It's not "100000% legit". You're more likely to get viruses than anything else.