Just a note on the Yamaha YB9000PRO Signature Bag for the 9000Pro Keyboard since I'd never seen it mentioned in this forum before. I recently got one and for those who haven't seen it, it's a serious case. Extremely well padded and heavy. I was surprised at how thick and tough it is. It adds a good amount of weight to the keyboard though I have no idea how much. Has wheels on one end and a handle and strap on the other (you'll need those wheels!). It's the best non-wood case I've ever seen and provides more than enough protection for the keyboard. Looks good too. Currently selling for around $130.