How to upload videos of me playing Minecraft on a MacbookPro?

So recently I made a Youtube channel for gaming. So far, I have about 7 subscribers which is really good because I have ZERO videos. I want to upload some videos of me playing MInecraft with my friends. So does anyone know any free apps that can video myself playing minecraft on Mac?
And if you didn't know, my channel is called Creeper_Plays_MC at
http://www.youtube.com/...Ar1gu4FOVA
Thank you and it would be really helpful if you would subs to me.

You could use quickitme or (my preferred) an app called any screen record pro, its free.