corvette, i believe the "rainy" season is from june to october in RM. of course i havent experienced that myself, but its what we heard when we were there a few weeks ago. as far as hurricanes, i thought those were mostly an end of summer/fall thing??
also, as far as the dj, can use use an ipod option, or just go to the disco at the hacienda that night? how many of your original guests are you still expecting, might not need the full-on DJ experience anymore.
anyways, i love your attitude, so maybe if you cant make a dj thing work out, i bet you can look at it as a money saver idea