From my experiments last night I think I am just gonna stick with pc due to the fact that there is so much support already out there. I don't know jack about apple scripting and it looks like you (vultuk) do and had to use that to get keys to pass to multiple windows. At this point in time I have access to multiple laptops and from a test I ran I was able to get two instances on one laptop running pretty smooth (frame rate wise, still figuring out pass-through and what-not)

Thanks for everyones input but for now I think I'll stick with my PC.

Oh, vultuk, I agree that Apple macs a fine machine, too bad not as many companies are as farsighted as Blizzard in porting their games to mac. Although, it does seem that most games that are WORTH playing eventually do come to mac so if you don't mind getting your games a bit behind the curve it is a nice filter to get rid of the crud games that come out.