I have two Fuji accessories that I will not be using with my new X10:
This flash works with both the X10 and X100. Only mounted it a couple of times. It comes with the box and all papers.
Price: $90 shipped and paypalled
This is a genuine X10 leather case and strap. I opened it, but I don't really see me using the top part of it. It comes with the box.
Price: $85 shipped and paypalled (or trade for a black Gariz case)
I have feedback on mu-43 and fredmiranda under the same username.