Hi Matty,
I recently wrote a client for the ITU GazeTracker so that You can directly record gaze samples from within OGAMA (V3) using the great ITU GazeTracker and a infrared-ready webcam. I recommend to use the modified PlayStationEye camera as described in the EyeWriter project.
Beside this, the log files of the GazeTracker can be imported in OGAMA also.
Hope you find it useful.
Greets,
Adrian
http://didaktik.physik.fu-berlin.de/ogama