Noob question: what is the little button type thing on the body of the 1d right under the lens? I wish I could grab some these manuals that are in the marketplace sometimes, but they go so quickly!
Edit: oh! And if anybody could point in the right direction of a part number for the wire to transfer captures straight from the body to the computer...and maybe a free raw converter software
Canon U.S.A have the user manual and RAW converter via DPP on line.
The button I think you are looking at is the depth of feild button.
As for the firewire cable it should be able to be obtained from any half decent electronics or computer shop,hope this helps.