Originally Posted by SpoiledBySig
I looked into the Hero Go Pro cameras, but I have been told it's got a fisheye lens and they are terrible at night (no real idea myself, just been told that).
My kid has a GoPro he uses for videoing his parkour adventures. Great camera and excellent quality. They also have a case with a lens that gets rid of the fisheye.
That said, they aren't designed or well suited for what you are trying to do. I'd go with the guys suggesting a refurb VHS unit or something. We still have several old models in use and they work fine.
Also, don't forget about the possibility of getting a fed grant to pay for them if your city is tight. I don't know what's available, but I'm sure there are some on here who could point you in the right direction.