debut video recorder google it and you'l get it.Its very customizable e.g. can record certain parts of screen, choose exact resolution and add colour effects.
FRAPS, HyperCam, RecordMyDesktop, just to name three.
The other option is to download the beta/compile your own, press D for debug, V to start "recording" (1 screenshot per frame) then import into your GIF editor of choice, GIMP's Import as Layers works well for this.
@Erosion(View Post) The recording feature of tpt is completely broken and useless by itself. If used improperly you'll get several gigabytes of files you can't open.