here is a few picturesfrom my homebrew setup. It is with a 2.0 meg camera.
Day
Night
It is not necessary to say that the Ir camera will give you just BLACK & WHITE pictures. IF you go with the home brew style (you can purchase them already made) the night pictures will vary alot. Some will have pinkish tints, while others will have a purple tint to their pictures. Other cameras will have near normal pictures day and night, just depends on your camera you use. Most people will convert their pictures to BLACK & WHITE for better clearity or to remove the unwanted tint.
Again the above pictures are from a 2.0 meg camera and I did not do any altering to them. They are as they came from the camera, other then to download them to the internet.
Hope this helps.
PS ............ here is one that I lightened a little for a comparison (my camera flash does not reach too far)