Terry,
Only thing to watch out for are unscrupulous E-Bayers selling the disc without the hardware (dongle). With G3 and AFPD that cable with the dongle or the controller, if it is the version that includes a controller is the "key" to running the software, the software disk by itself is worthless, the vendor won't replace "lost" cables.
Good luck,
Pete
P.S. I may be puting my AFPD for sale after I have a chance to see FS one