Cynical Cat said:

How about forcing your players to do some GM:ing as well? If you've been kind enough to be the GM several times already then it's only fair that they step up and show you the same courtesy, right?

I play with a big group and I GM about 75% of the time.  The group is over ten years old and I'm usually the GM.  There's one guy who GMs about 20% of the time, one other that will ocassionally take a stab at it, and two others that could GM well but get gun shy and backed away from GMing after a few sessions.  That means when I play I play when someone else has an idea for a campaign and is ready to do it and that's been D&D, Earthdawn, Star Wars Saga Edition, Dark Heresy, and Vampire:  The Masquerade and the campaigns often don't last long.  That's just how it is. 

I want to say vampires but skaven just are the setting for me.

Cynical Cat said:

Hmm. But don't you think that the state of affairs as they are now might stem from the fact that you've let them become like this? I mean, if you've never objected to your group that you want to be playing a littler more than you're GM:ing, then it's not really that strange that no one else takes the initiative of changing. Right?

I think you could even get the gun shy guys to GM a bit more than they do now. I mean if you have a solid group that has been playing for TEN years (that's a long time), what do they have to be gun shy about? I mean if they take a stab at it and notice that thy have problems, it's not like the rest of you are going to belittle them and insult them for their poor GM:ing right? Friends (or people you've known for ten years) don't do that to eachother, now do they?

So if you really want to GM a bit less, put some preassure on your group. Not the harsh kind of preassure of course, but tell them that you'd really like to play a bit more than you do now, and tell them that you'd really like to see the gun shy players do a bit more GM:ing. Tell them that if they have problems with the administrative parts (like understanding the rules etc.) you can help them with that, even during gaming (In my group where we have a rotating schedule of who's Gm:ing we frequently ask other players to look stuff up in the rulebook when the administration get a bit hectic).

Just encourage them to invent a cool story (or perhaps adapt one from a film/book/comicbook etc.) and im sure they'll follow suit. I remember when I first joined up with this group I am in now (although our group look very different since then), when they suddenly sprung the idea on me that I had to GM. I really didn't feel comfortable to the idea, but when they simply told me that they expected me to GM next sunday, I just got a deadline and that was that. Since then I've really been "blooming" as a GM, and evolved quite a lot.

So the trick is that you're gonna have to help/push the others into GM:ing. If you don't they'll just get too comfortable with being players.

Skaven of course! The other also are looking nice but Skaven are my favuorite.