Unfortunately, scanner enthusiasts and amateur radio people seem to be mostly stuck in the virus and spyware-laden Windoze world.
If you have a new Intel-based Mac, you can run Parallels or another program that let's you run Windoze software, and they do support addressing the USB port to your scanner.
If your Mac is running a Power PC chip, you can use the MS PC emulator.
Of course, you will need to use a ton of anti-this-and-that software in the background to protect your Mac from all the crap that's out there that infects Windoze-based PC's!
I keep praying that Don Starr will come out with Mac-based software for scanners.