I can view it at work, and in the house, we can check it on our phones or Ipads. We even had a live feed for the out of town grandparents for a while. And all for $40...
Step 1: Get the Camera
This is a camera I used: EasyN FS-613B-M166
Step 2: Setup the Camera
If you would like to view it from outside the home, you will need to know how to configure your router for Port Forwarding. This part gave me fits and I hung up the project and only revisited it a few weeks before we had our daughters. Turns out it is pretty easy. Just got here and find the instructions that pertain to your router. You will also need to know your ip address outside your home. You can find that by going to this website.
Either way, you will need to download the apps. I have had good luck with EasyN FS on my phone, and a similar EasyN app on my ipad. The more expensive Swann camera I purchased first has it's own set of apps, but they are not free. As I said, the interfaces vary a little bit, the Swann camera controls are reversed from the EasyN app, but I don't typically pan around the room anyway.
Step 3: Setup the App
Setting it up is as easy as entering the IP address (that you got off the IP Search, or your Public IP address after you have setup port forwarding on your router (if you are planning to view it outside your home), and the username/password. It is very important to change the default username/password. Some of the cameras come with two way audio. I placed an external microphone plug in ours just in case anyone viewing ever decides to try to say 'hi' to the sleeping babies (read, my parents).
You can also view it just by entering the IP address in Firefox, Internet Explorer or any other internet browser. You'll be prompted for the username/password and then have to select your view.
The second picture is a typical view of the interface, this one from a PC. You can pan/tilt the camera and move it around the room. The real benefit of this camera for us is I can see which baby needs a pacifier before I enter the room and without having to turn on the light/risk waking up the other baby. The view is color when there is enough light, and black/white when there is not.