Use Fraps and run it the next time you play a game that you normally have screen tearing in. I'm assuming that you have a 60Hz monitor, so anytime you're fps goes above 60, you are going to have screen tearing. Then try turning V-sync on, if you are then constantly staying at 60, you should be fine and it should sort out you're tearing. I play with my fps anywhere from 60-80 with vsync always off and I do get the occasional screen tear, but it is totally manageable and totally worth not having the input lag.
Also, i didn't see anything in the video, but Fraps will limit your fps to 30 when you are recording.