I have a Light & Motion Super Macro Lens that I no longer use. It fits Blue Fin and Mako housings and is great for nudi's etc. It works with both SD and HD camcorders.
The L&M part number is 802-0095 and it retails at 405 pounds in the UK. The outer lens has several scratches on it but the scratches do not effect the image when the lens is used underwater so I would recommend trying the lens wet before deciding to change the outer lens. A replacement outer lens retails at 85 pounds and it is not very difficult to change it yourself.
I am looking for offers in excess of 75 GBP and will post at the buyers cost if payment is made by PayPal.
Matt