Well, after a few failed tests with 3 cheap web-cameras, I made it working, but crashing, because of WiFi dongle… well… don’t buy cheap hardware!!
So after a while I found this post: http://jeremyblythe.blogspot.co.uk/2012/06/battery-powered-wireless-motion.html
Author says he used this combination of webcam and wifi for 12 hours of watching and recording wild life to Google Drive. SO I decided to go for the same hardware and ordered it at Amazon – will get it by thursday, meaning all will work and I would only need to create some nice controlling page!!!
PS: already thinking about charging robot without special contacts needed.