lol, I had an awesome Pc, Well i still do its in my loft, Nearly the best of everything, 8Gig Corsair ram, Ati Crossfire 512 Graphics cards, blah blah blah.
And it still couldnt do simple things like load a web page anywhere near as quick and smooth as my mac can.
My only advice for any doubters would be to buy one and live with it for a while. You will never go back to pc/Windows.