I sure as heck do not want to be in the guild leaders shoes when we get guild beta invites and if there is a limited number of slots you can hand out. For now I've ppretty much thrown in the towel on getting a beta invite. Nay I'm not worried or anything along those lines. I pre ordered the game so I'll be ready when it comes out. I just need to decide if I want a new computer or not.....
Edit: To answer Nick's question. Just make it random if there is not enough invites to go out. Find out who is interested in doing the beta and put their name into a hat and draw from that. Again you won't make eeveryone happy but hopefully folks won't get their knickers in a knot over this. What ever method you use to decide I stand behind you. Again it's a tuff choice lets hope BioWare gives you invites to get everyone in.