You can buy them at Walmart for US$7 - 8.
Camcorders are a bit tricky .. what OS version is on your G3?
In my above link, at the bottom I saw this:
Quote:
| * i.LINK is a trademark of Sony, used only to designate that a product contains an IEEE1394 connector. All products with an IEEE1394 connector may not communicate with each other. |
I don't really get what the implications of this are but have seen plenty of threads about the woes of not being able to connec a camcorder to their Mac for one reason or another. FWIW, for the smallish cost of the firewire cable I would think there is nothing to lose.
Have a look at my last post, regarding the 'Connecting To A Mac' section in the Operations Guide ... you might be able to get the G3 to recognise the cam, using the USB cable you have with you?