LoiLo Game Recorder

Offering a free solution to gameplay capture, LoiLo is a great starting point to becoming a YouTube "let's play" sensation.

The light weight program allows you to grab footage from any game on your PC, even letting you record live commentary to go alongside the footage. A range of capture settings accompany this, enabling you to adjust frame rate, resolution, and quality to get the best from your rig.

It's not perfect, but it is free and easily hangs with paid alternatives like FRAPS and Bandicam.