Multiple Input for Macs?

[torpid_beaver]

I'm trying to capture a bunch of content from multiple wireless cameras. Is there a program/device that'll allow more than one line of input into my mac?

Thanks.

 

[torpid_beaver]

Here's a bit more on what we're trying to accomplish:

attaching two "Bullet" cameras on leather straps, along with a 2.4 GHZ transmitter and power supply.

Each leather strap is attached to the user... we're thinking 4 total camera "operators" at one time.

4 2.4 GHZ receivers, stationed as to provide the best wireless coverage.

Computers at each receiving station, to capture the video feeds.

Is there a piece of hardware or software that'll allow me to record the 4 separate lines of video, at each station?