Crosmando: Good luck to GOG getting the last QfG game working on a Mac, that ancient Win95 code barely works on modern version of Windows. Same goes for that other Sierra windows game Betrayal at Antara, horribly unstable on modern windows os's.
DCT: Honestly when you think about it, it may be easier since you would have to use a emulation wrapper like Wine so you maybe able to support that normally finicky win95 code better then modern Windows especially since Microsoft is not known for their backwards compatibility
Wow, really? Because both Betrayal at Antara works almost flawlessly in both CrossOver and in Wineskin on my setup (CX11.2.2, 10.6.8, GMA 950 MacBook). I saw "almost" because the menu bar remains visible in full screen in BaA and I can't seem to figure out how to get it to go away.
QfG V kinda-sorta worked in CrossOver, but I got it work almost perfectly in full screen in Wineskin using the WS9Wine1.5.13AMDSpeedHack engine. IIRC, due to the annoying issue with WINE in 10.7+, I had to use a Virtual Desktop to play both games in Lion. I got QfG I-IV working in Boxer, but it's neat to know I could have used ScummVM too.