I just got a 2' version of the cable BobA shows from a PC recycling place here in Seattle, it was actually built into a computer component, but the whole assembly only cost me $1 and it also had a firewire cable of the same style. Definitely worth looking for a place like this near you, even if they don't have the exact same part they may (like this one did) have bins of used cables and headers that are really cheap and good for making adapters out of.