I have tried the short cut by downloading my games in an already ADFed state but most of these are cracked so the installers for WHD & JST don't work.
Ahh... but if you have the originals, why not WHD or JST them to the hard drive on your miggy? Then you could .lha the directory, and transfer THAT to the new machine?
Of course, if your miggy doesn't have a HD, you're screwed. ;-)