Here is a listing of other Big Bangs that I have recently come across in the past several hours. These are on LiveJournal. If you know of others anywhere, please feel free to respond with their links.
J2 & Kane Big BangGood god, are these guys fanfic rabbits? Almost a dozen big bangs dedicated to them and the characters they play.
Slytherin Big BangGreen, check! Black, check! Ferret-faced, sniveling little cowards... Potter! Fifteen points from Gryffindor! And I want a fanfic with no less than 10,000 words as well!
Classic Trek Big BangSpace, the final frontier. These are the voyages of the Big Bang, based around the original series and it's multitude of spinoffs. It's continued mission was to expand the already established canon and erase the harm done by J.J.. To boldly take us back where we had gone before!
Enjoy!