What do I need to record security camera video?

[ric0chet06]

Found a deal on 4x Day/Night security cameras, but would like to record the video to my HTPC. What is the card called that I can hook them up to, a capture card? I'm looking now but any help is appreciated.

 

[CalvinHobbes]

If the cameras use BNC connectors you can use something like this:
http://www.newegg.com/Product/...x?Item=N82E16881124031