Dell M6600: Not Windows 8 Preview ready

I got a new Dell M6600 at work, and was excited at first, but later found that the performance is not particularly faster than my older M6500.  But the worst part was that I couldn't get Windows 8 Preview installed on machine.  Also I had hard finding all the proper hardware driver from DELL web site, so after struggling with it for a day, I pretty much give up, and will use it solely as a work machine, instead of a good R&D machine.