FireWire 400 to FireWire 800

I have just purchased an iMac which has only one FireWire 800 outlet. I have three external HDs which are compatible w FireWire 400 outlets only. Is there a way for me to be able to use these HDs with this new machine? Is there a wire that would allow me to use HDs w FireWire 400 outlets on this iMac?
Any thoughts on this would be most appreciated.

Yes this is very common and there is a simple solution, you just need a Firewire 800 to 400 converter such as this:
http://www.amazon.com/Sonnet-FireWire-400-Adapter-FAD-824/dp/B0000CDJPQ/ref=sr11?ie=UTF8&s=electronics&qid=1253141288&sr=8-1
or
http://www.amazon.com/FireWire-6-pin-Cable-9pin-6pin/dp/B0027DPM1U/ref=sr14?ie=UTF8&s=electronics&qid=1253141418&sr=8-4
From there you can daisy chain your Firewire devices together. Your external HD's will need 2 FW plugs on each drive (one in and one out) if they don't have this then you will need to purchase a Firewire Hub such as:
http://www.amazon.com/IOGEAR-GUH420-Port-USB-Fire/dp/B0007RB28U/ref=sr16?ie=UTF8&s=electronics&qid=1253141533&sr=1-6
Regards,
Roger

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