Well, I'll help with starting the guild. I have no reservations with starting either as dark side or both a dark and light side guild. I haven't committed to any character type yet (and will most likely try a few from each side). I can help with the RP / lore aspect of creating the guild and getting together a back story (I did this for CS as well as some of our previous guilds).
I will look up some SW lore stuff to help with a guild name. There are a few "set in stone" principles when it comes to a name. The words "Guardians, Light, Dark, Evil, Republic, Empire, etc" should not be used. Keep it simple.....
First submission I have for a guild name is "Vigilance" That can be either a dark or light side name...depending on your point of view.