Just got it today via Steam! Works great so far...I just lost a day of work playing! So far I'm loving it! BTW I use a MAC PRO with Bootcamp and no problems at all! Anyone else on a Mac?
I would just like to add, I have a Macbook Pro mid 2010 model (15inch, i7) with the Nvidia 330m graphics card with the latest drivers, but whenever I get to the sign in screen the game crashes and get a popup from the task bar saying its a driver error.