You will be able to use Magic64 if you get a 060-card indeed. It gives you a pretty good emulation. But using a real 1541-II instead of d64-files won't give that much boost I think.
Magic64 was good, and perhaps still is on the Amiga. VICE is available for the 68k Amigas aswell, and eventhough I have never used VICE on the Amiga, but VICE is damn much better than Magic64 nowdays.
