i have been up all night playing this game and i can say it is the best game ever, the whole game is absolutely mindblowing.

now if only i can find a computer of my ownm that can play it

I just finished it and one word: WOW!
Best singleplayer experience ever (I hate Counterstrike, so I won't go into multiplayer). The ending is excellent (contrary to the opionions of some people).