The problem is that all the old digital cameras I have at hand are either too old or not high-price-segment enough to support any sort of looping video through,

The problem is that all the old digital cameras I have at hand are either too old or not high-price-segment enough to support any sort of looping video through, which is a shame. I have 2-3 of those and while they're not awesome, the video would totally beat every laptop webcam...