Hi Rune
If you’re looking for a cheap, small camera that you can change the lens, I would recommend Canon T2i. Its a great camera but I don’t think if you can record through the HDMI in your computer. It should probably be internal recording.
I hope it helps.
Daniel Shojaei
CEO – Ontario Camera Rentals
http://www.ontariocamera.com
51 Jefferson Ave
Toronto, Ontario
Canada
647-345-8220
Info@ontariocamera.com