Just got a new iMac and need to move stuff to it from the old one and a Firewire 400 external drive. Didn't know I'd need an adapter until I found it didn't fit! Found one by Sonnet on sale at amazon for $13. 1) does anyone have any experience with the Sonnet adapter? 2) any local store sell FW adapters so I can buy one this weekend? Many thanks, Jeff