Try Getawaytoday dot com. They have 2 magic mornings with their park hopper tickets. We will be getting ours through them for the magic morning's and we leave in 5 days!
I am planning on calling them in the morning, they are e-tickets and so it should be very easy.
They don't really need 2 MM's ~ we'll only get a MM on our last day because our last nite is @ the PP (AP's for the kids & I). They wouldn't do a MM without us.
I would probably just do the e-ticket option from disneyland.com. Pre-purchase price, simple procedure, etc. From what I've noticed, GAT is the same price, and if you don't need the 2 MMs it's not necessarily worth it.
Check out arestravel dot com. there prices for 4 day hoppers are $5 cheeper than disneyland dot com. THey do have a $1 processing fee, but that still makes them a better deal.