How can I make a cheap, basic video surveillance system?
I just moved into a two-story house with a lot of poorly-placed windows. I plan on spending most of my time upstairs (as both my bedroom and my workspace are upstairs), and even if I'm downstairs it's hard to see if someone's at the door. I was thinking that I could get a wireless camera set up outside my front door with a live video feed running on my computer, and possibly having it somehow visible downstairs as well. However, I have absolutely no idea how to do that, and other tutorials I've found only take photos, or require an extremely expensive camera. I don't need anything too secure, just a digital peep-hole, essentially. Any ideas and suggestions will be greatly appreciated.