Just heard on the radio the results of an Epic-MRA poll (no internals, just my notes from the radio) on MI (caucus date is 2/7).
Poll was taken from Tuesday through Saturday or Sunday (sorry, I just wrote down "S").
Kerry 37%
Dean 14%
Edwards 14%
All others, 5% or less
Over 400 likely voters polled, so the MOE is pretty reasonably.