When you guys expect the Pre-Load to go up? Maybe they are waiting a certain time in PST or something like that...
I cannot sleep while my Pre-Load doesn't start. I need to start the Download after all.

I usually check with the Steam Staff on the forums, but they're down because of an attack. The last game i waited for a pre-load for, the Valve guy in charge of the files basically said he was waiting for the Files to distribute themselves worldwide to all the different servers before beginning, as that reduces download bottlenecking. That might be the case here, the files are distributing themselves globally and we're waiting on someone sitting at a computer to click a button.
I'd like to start my pre-load before bed too, though it's getting late.