4 week assignment?

I'm looking to start travelling mid-winterish. I still have my last high school kid at home, so don't want to take a longer assignment yet. Wondering if anyone has a suggestion for which companies provides the best pay/housing/etc. for the shorter assignments. I live mid-west, but am totally flexible about where I go. I'm an ER nurse currently, have also done tele/stepdown and CCU (although not an open-heart/angio hospital, so limited experience in that sense.)

Thanks for any advice. Can PM me or respond here.