Nice idea man!
Loving the digital Sig/Avy as well. Very nice. I've never tried making gif sigs or anything. What program do you use by chance?
I hope you get a big turn out, but don't be put off if you don't. With only premiums being allowed sigs, this section doesn't get too much traffic.
I actually don't know the answer, and will be finding it out as I'm really curious. I may enter if a BJ Penn digital sig becomes a prize
EDIT - Just had a quick browse around the webs, Omfg
Never knew that. Awesome.