Project Hombre is a soon-to-be-released collection of free tools that allows transfer of .adf images from a PC directly to the floppy drive of a Commodore Amiga.

Supports serial or parallel transfer
Supports compressed .adf images
Works (with limited feature set) on an unexpanded Amiga 500
Supports long filenames
Works on NT based OS but includes DOS tools if you need them
Access a directory on your PC from your Amiga

http://eab.abime.net/showthread.php?t=27704

-Sune