Wow.
I must say, this is an excellent piece you have here, better than my entry I'll admit. I love the soft piano you used. The FL orchestral strings aren't all that bad IMO. Sure, there are better out there (I'd give you soundfont names but I lost mine when I reformatted my disk), but these strings works.
I'm curious, which piano are you using? It sounds excellent and I would love getting it if you don't mind :P
Good luck on the MAC!