Importing video from 8mm video camera to iMac

Hi. I guess this topic may have been aired before but I would be very grateful for some help. I want to import video to iMovie on my iMac from my old 8mm Panasonic video camera. iMovie help section covers this as follows

"To convert video in 8 mm, Hi-8, VHS, or SVHS format for use in iMovie HD, you need a special converter with standard S-Video and RCA input/output ports for video and audio, and a FireWire (IEEE 1394) input/output port."

So do I just need a cable to connect camera and Mac, or is there some other bit of conversion kit I need? If just a cable any ideas where I can get one from (preferably UK)? I have not had any luck with this so far. Thanks for any ideas