The BioShock PC demo is now available for download on FileShack. Here is your thread to anticipate things and things. Firstly, it's been made very clear that you are going to need the latest NVidia or ATI drivers for your videocard. So here are the links that you will need
With the help of Limelight Networks we will be pushing some pretty massive bandwidth for Mercury members for the demo. Feel free to grab a download accelerator if you are a Mercury member. The Quicksilver servers support them and the BioShock demo will be available there.