Hi there;

Horizons is a massively complicated program; if any emulator could manage it I'd be amazed. It would be a marvel to see though! Hz's isn't graphically that complicated, but it's all the underlying stuff that might give an emulator a tough time. At least mac's are using the same processors now, so I'd wager it's not impossible.

How come you're loosing pc's in favour of macs? Perhaps some arm-twisting is in order to make whoever it is keep a few pc's.

Rakku