Hi-8 video to a 27in Mac

I need to download Hi-8 video from a Sony cassette Player / Recorder EV-C200 with S-Video and composite output to my 27in iMac. I need a cable with a male S-Video and male composite Audio on one end to a Mac compatible USB 2.0 or firewire.

I have been looking all over the internet... please help!
 
I seriously doubt there will be a cable to do that. S-Video/Composite are analog signals, USB/Firewire is digital, you'll need a box or a card that can take that and make it digital so the computer can do something with it. Probably a box since you have an iMac.
 
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