The new Sunray Probe for the Fisher F75 is available now. 
I had the honor to fieldtest the new Sunray FX-1 probe and you can read my fieldtest in the February 2008 issue of  theWestern & Eastern Treasures magazine.
Here is the sunray page of the FX-1 probe and the guy with the F75 in his hand is me : 
Sunray Fisher FX-1