I was only inspired to upgrade a real Amiga to RTG, '060, etc. after using AmiKIT (
http://amikit.amiga.sk/ on a PC, and of course after I'd gotten that all done it was not nearly as usable as AmiKIT due to speed, so I sold off the overpriced old hardware and deleted AmiKIT as well (emulation is no fun.) Now I have a cobbled together A500 for when I feel like messing around with Amiga.
