Need desparate help, recording 360

I would like to record my xbox 360 footage, I heard I need a pci tv tuneer card or something, I have bought these cables already, what else do I need, please could you also give me links to buy these things that i’ll need, please help me, I LOVE THE LOOK OF THE SITE BTW!

Did I mention I am desperate please

Yah thats really good help thank you