For later reference, the site is http://www.donnael.com/GXCWiki
Definitely come check it out, and it would be wonderful if people contributed even just a couple of words to the effort. Sorry about the walls, though - the paint is not quite dry :)
Mad respect to Garrett for creating the wiki and hosting it on his site :).
Update: you can edit the wiki after a quick sign up with the site: click the "log in/create account" link in the top right corner.