Head on over to http://www.zoneminder.com/
. It is a complete and very nice security Linux application for cctv, and other cameras.
If you want quick no hassle installations and or just want to try it out, then download their live CD, it works extremely well, if you like it then you can install it via an icon on the desktop.
Once installed to the hard drive, it can be updated to the latest release via rpm files.
They have a great forum, with folks using many different distributions of Linux. I have installed it on a SuSE machine, and have used the Live CD installed to hard drive and am very happy with it. I use it with a Picolo 2 capture card, a Checkpoint CCTV camera, and also with a pinhole wireless camera, works great and I highly recommend it over running windows in Linux.