Well, the sign up calender isn't doing as well as can be expected, with many of our members apparrently being just too damned lazy to use it. 

So on scheduled raid nights, I figure we start inviting first in one raid everyone who wants to participate. Then a leader-type moves the classes present around into two seperate 10 man groups in that first raid. Once the groups look balanced, one leader takes a group and they're told to disband to form their own raid, and it begins.

Once that calender is used more, we'll be able to get an idea of what to place in each raid team earlier.