You already know I'm
not a huge fan of Western Digital's new MyBook Studio line. But if you need to use these things (I have one for a client still sitting here) and cannot stand that VCD (Virtual CD) mounting each time you plug it in and having to manually unmount it as well as the HD itself there's a simple AppleScript that will auto-eject it for you.
MacOSXHints has a little article about it
here.
Just in the interest of it not being lost in the morass of the intertubes I'm posting it here.
tell application "Finder"
activate
try
eject disk "WD SmartWare"
end try
end tell
It was submitted by "Anonymous" over there, unfortunately.