After seeing this thread, I bought two of the Foscams - an FI8910W (indoor) and an FI8904W (outdoor). Both with automatic IR, WiFi. The indoor model also has pan and tilt. Considering they cost $100 each, they work fine. They are cheap cameras, and you can spend 10 times as much for a good camera. This is a "you get what you pay for model". However, for my use, they work fine. The indoor model will not look through glass with the IR lights, so if you want to look outside at night, you have to turn them off. You can't disable the IR lights on the outdoor model. The indoor model also has the ability to speak and listen through the camera.
They can be setup to email motion pictures, but the motion detection is fair at best. It picks up light changes and shadows as motion.
If you are looking for a cheap camera setup, four of these will set you back $400, plus software if you want to record, etc. There are numerous Android and iOS apps that work well for watching from a mobile phone as well.
The cameras have a web server built in and a form of password protection, but it probably is not very secure. The server mostly works, but from outside the house it is a little flakey - the picture works, but controlling the pan and tilt has some issues. The cameras are powered by a small transformer, and the outdoor one only has a 6' or so cord, that then plugs into the transformer cord and ethernet. So, you will have to seal that somehow. I have heard of folks rigging a POE (Power Over Ethernet) like solution, and running power on an ethernet cable. Mine is sealed in plastic baggies right now, including the power supply (small plug in module).
If you are looking for cheap, WiFi cameras, these work fine. If you want a packaged solution, go to Sams Club and buy one of their wireless packages. They cost less for four cameras.
Note that if you are wanting one of these to watch your front porch, be very mindful of the lens. The outdoor model I got doesn't cover nearly a wide enough angle to work on my porch. However, there are $10-$20 aftermarket lenses you can get to get a wider view.