Is it neccessary to get the Canon branded OC-E3 cord or can I just get a generic? Really do not feel like shelling out $75 for a wire I can probably rig with Radio Shack parts. Found a Dot-Line cord from B&H that supports EOS systems with E-TTL II also. Has anyone purchased this, and if so, does it work okay? Thanks for the input. http://www.bhphotovideo.com/bnh/controller/home?O=cart_accessories&A=details&Q=&sku=513628&is=REG Accidently posted this thread in the wrong forum. If a moderator will be so kind as to move it to the Equipment section, I would be most appreciative.