Elation Image Pro 300...
Ben has them and they are priced well below MAP of $569. The two bars that come out the front are low voltage bars that supply power to the clamp on accessories (and there's seven or eight available).
Of the several accessories available, are a drum roller, rotating gobo and three 35mm slide holder that changes slides at intervals... this unit is VERY cool and the only way to go for "real" gobo projection. Mine should be on the way any day now. And, it accepts transparencies.