I prefer a lightweight heavily padded case which also INCLUDES built-in wheels for easy transport & manuveribility. For my Tyros, I use & recommend the Kases Porter model #KKP9KB, of which provides an idea fit. I purchased mine from Guitar Center for $99 when I first got my Tyros (12/02), and continue to use it to transport the kb daily. It weighs about 15-16 lbs. http://aceproducts.com/porter.html

Scott