frodo: http://www.fraps.com/ FRAPS is cheap and very good. It lags a little bit when you are recording lots of 3d stuff or other hardware surface DirectX stuff, but should do great for your needs.
MY CAR IS FOR SALE! See My Project Page for Details - 2003 BMW E46 ///M3 Custom Dash Monitor Housing - OEM Fitment
Custom Overhead DVD-ROM Housing in Headliner
BMW I-Bus Integration My homepage with many other fun projects!