I received this info from a long time email list member this morning and thot y'all would want to know this:

Hi Bill. Speaking of a good external hard drive bargain. I bought a Western Digital 320 external hard drive for $99 Australian dollars but I use it exclusively to save all my styles and settings of my Tyros 2. I have a lot with downloads etc. The Tyros 2 reads the WD hard drive no problem contrary to what some people say. It also loads and backs up files direct from the Tyros 2 and my PC. Bill Kerr
Bebop sez this is amazing!!!!!

UPDATE ON THIS SUBJECT:
Hi Bill. The WD320 external was the only brand the Tyros would read. All others, the Tyros wouldn't accept. I tried about four other brands before a friend of mine told me about her WD160 external, (an earlier model) also used on a tyros 2. I believe it was posted on the Synthzone about eight months ago but was reported as being limited to 32GB.I believe an English woman made the report. She also has styles on the web. Can't think of her name just now. Good luck. Bill Kerr