My laptop boots to a usable desktop in about 30 seconds (Windows 7 Pro x64) including POST, system password and Windows logon. I have a 320 GB WD Scorpio Black. For a regular, laptop HDD, it's a beast. I also think Windows 7 does a better job of giving you a usable desktop while it processes in the background. Our standard, corporate image takes about 5 minutes to boot (Windows XP Pro) from a fresh image on my laptop (using a POS Hitachi 60 GB HDD). The corporate image includes some heavy-duty data encryption that slows everything down and makes the laptop all but unusable.