Originally posted by manicx
There's nothing wrong with emulation under emulation. I can run Shapeshifter at nearly 17fps through my winuae setup in my 1.2Ghz Athlon Thunderbird.
Shapeshifter isn't a REAL emulator, since it relies on the fact both machines have a 68000. I don't think it runs hardware banging stuff either (but I'm not totally sure about that). So running an emulator to run Shapeshifter isn't quite as ridiculus as the other suggestions made here.
If you really want to play with this stuff you could always try using the Amiga port of UAE under your own platforms UAE. Several years ago it reputedly didn't work, but with all the improvements since then you could give it a go...