I've heard about problems with the ReFurbs...
Make sure the unit has a battery, the power cord, the USB cord (easily replacable) and more iportantly the install disc (replaceable).
The install disc and USB cord, you can get a copy of here, and order from ebay (I have an extra USB for the wokr computer.)
But yeah, you'll need the battery (get 2) and the power cable to charge the battery...
And personally, I wouldn't buy it... Those kinds of things I tend to want to buy brand new from manufacturer with warranty... EVERY electronic item I have ever bought used from EBAY has had problems (that is except for the 3rd DAT machine I bought - the first 2 were bunk).
Terry