alternative A/C units

Looking to see who out in pod land has replaced their existing a/c with either a floor or table unit and how it has performed.  We ordered our 177 w/o A/C, microwave/convection oven, or entertainment system back in January 2011.  After a day like this 92 and 80+% humidity I am entertaining the thought of maybe wanting to get some kind of floor or table unit.  Realizing it is a moot point when boondocking, which we do a lot, but may be kind of nice on those days where we may be at a location where electricity is available.  Really don't want to fuss with a generator either.  Thanks.