Hope no one minds me starting a new topic for this.
ETW is a big install, it should be standard precedure to defrag before install, but for those that might get to excited at the hour, taking the trouble in advance should help you out in the long run.
Last night I spent awhile freeing up as much of my HDrive as I could, deleting stuff I didn't need and uninstalling games I realisticly may not play again/for ages.
My first defrag took 5mins on a Raptor HDrive, I ran 2 more until it took 3 seconds.
After installing the game I will run another defrag. I did this for the demo and my loading times were under 1 min without unpacking the files!