I am off to London this week, but I will take up some of the suggestions after that. Thank you very much, al of you. The computer was put together by what turned out to be a quite unreliable supplier. I subsequently handed it over to the AKASA importer, who said they never had any overheating issues, but even so could not get this combo to function flawlessly. As for the software, all I need is something simple to use that does not require too much from the hardware, and can synchronize audio and video using the camera audio and the audio from the external recorder.