I'm looking to be a magicka only type user, or that combined with stealth.

Is anyone making a guild just for stealth users?

No not currently, but I am going to be making a Daggerfall Covenant guild, PvE, PvP *heavy for both*, most likely role-playing casually. No requirements.

The Cobalt cloaks are a Daggerfall guild that are made up entirely of mages (I think). Check em out: http://www.tesof.com/topic-the-cobalt-cloaks-mage-roleplaying-guild

They're EU though, not sure if that matters for ya.