Congrats Dave. I own and ES7 myself. I'll admit, right now it's more than I can hanlde, but when I'm ready to tap into the beast, it'll be ready for me. I use it live for now. I play with a Christian artist, Mike Wells. He already has a piano player so I used the ES7 for B3 organs, pads and strings. I've also used the "upright bass" for a few tunes. The board kicks butler man. You might also find http://www.sninety.com
useful. There's common ground between the ES7 and S90.
I also recommend two voice libraries from motifator.com 1) B's Knees and 2) Vintage Keys. I have both and they are loaded with great vintage sounds, if you're into that sort of thing that is.
One other thing, the plug in boards are a great way to expand the ES7. I had for a time the DX plug in board in my S90. I wanted to do some FM programming, but I never had the time, and when I was wanted to upgrade from my Roland XP-80 to the ES7, I needed some dough so I sold the DX plug board. I hope to replace it some day.
You'll need a smart media card to store sequences and DIMM cards for sampler memory.
I also recommend the Yamaha FC7 foot controller.
[This message has been edited by RW (edited 04-11-2005).]