Are there any good "FREE" FPS games for PC?

[katakuna]

I have a dazzle but the quality isn't very good therefore I don't really want to upload poor quality features on my channel. I'll most probably save up for a HD PVR or something thanks

I... I don't quite understand you. You're asking for free FPS games for PC but you're using an HD PVR? What's wrong with FRAPS.