When I bought my house the previous owner had 2 security cameras set up outside and left them, they have wires running with just regular component ends (red/yellow plugs). I have an HTPC with a TON of HD space that runs 24/7 I want to record the cameras onto the HTPC. What hardware and software do I need? Preferrably free software for windows. There are 2 cameras, but I might eventually add a third. Thanks in advance for help, Not sure if this is the right forum or not.