Alexk49 are you referring to those ADNs with experience?
I have a BSN and have applied to many, many hospitals in eastern MA; from Lowell to the Cape, even on the Cape. I graduated in May 08, with honors, did my preceptorship in CCU/CVICU and cannot find a position. (I did move here from out of state, so that doesn't help.) Most positions I have seen require a BSN. If they don't require it then it says "preferred". I am sure an ADN with experience won't have near as much trouble as one without.
To the OP: maybe you can get some experience before you come to the Boston area? ....if the market hasn't changed by then.