Steve... they've been out for quite a while now (though you wouldn't know it from Roland's advertising). Several posters here either have or had one of these. If you do a Forum search for 'Roland E60' or 'E50', you are likely to get plenty to give you some ideas.

But, long story short... the E60 is probably the best, 76 key, mid-line speaker-ed arranger out there (in fact, it's one of the only mid-price 76's!). They are VERY different from Yamaha's, in a lot of respects, but are tough to find.

Play one if you get the chance...