Lou,
I like the Genesys, but it is still second on the short list, Tyros of course first and here's why.

The Yamaha sweet, live and mega sounds to me are still the best I've heard.

Other than George I don't know of anyone carrying the Gem line. So product support and all that goes with it is out. Yamaha is a phone call away.

There are tons of things on the net available for the Tyros. Styles software etc.

I am familiar with the Yamaha o/s and think it fairly intuitive, I don't have a clue on the Genesys.

While the cd burner and goodies are nice, I wouldn't use them, except for upgrading possibly.

Weight doesn't concern me either as it is for studio use. If I was still doing live gigs though, the weight of the Genesys would not concern me. That's what they make dollies for.
Terry