[erc007]

I don't think that you have to worry about anyone other than UTG, unless any of the other limpers have very short stacks. I think a listing of stack sizes is vital here, in order to properly analyze this situation. You might be concerned if there is a very large stack in the pot as well. A large stack, who has seen you make a move before might look you up here. If UTG had limped marginal hands in the past, or if he had folded after limping from EP, then a big raise here might be +EV. The other key factor here is your table image. You sound like a good, thinking player, but what matters is how the table sees you. Have you raised aggressively before, and if you had, have you shown down any strong hands? If you have a tight table image, you will probably take it down right here. One other consideration, if you raise and take it down, you will have to play extra tight for a while, as your good opponents will see this as a move.