This lens is superb and very hard to come by. A review By Jens can be seen in this forum. I bought one a while back in Canon FD mount, but sold it again in the end as I could'nt find any one to convert the lens mount for me to 4/3. See below a link to my sales thread.
http://photo.net/gc/view-one?classified_ad_id=680835

In fact I tried to sell it here, but into more trouble than its worth. Eventually sold it in ebay. Here are some photos.



In the end, I got luck and found one in Nikon mount. So I was very happy. Here are some of my sample photos.
E-300+Tokina 300mm lens











So, here's the sales thread I found in photo.net.
http://photo.net/gc/view-one?classified_ad_id=700217



PS. I know nothing about this seller, so be vigilent when approaching to buy this lens.

Good luck.