I did my CELTA with International House, Barcelona.
it is actually ONE month long, unless they have inexplicably changed it.
and yes, you will find that doing it in spain is cheaper than even eastern european countries...who are trying so hard to *appear* western with their prices. long live spain!
it is very accepted around the world....it is 40 hours a week (mas o menos) and about 4 weeks long. and it is INTENSE! but if i could do it anyone can.
i met americans while in barcelona, many of them were doing black work teaching and trying to string together as many jobs as possible to get by. it wasnt something i wanted to go through so i left barcelona <sniff!>
but as we all know you CAN work in spain illegally. and if you are interested a CELTA would be a good idea, especially if you want to pursue teaching for a little while, inside or outside Espana.
ok, bye and later
brian