I am starting at the top of your list: ATK0110 ACPI -- Your correct, mine was very out of date (April 2004), it is now updated using 7/16/2009 as the dated version (driver version 1043.6.0.0). It was not a driver that was listed on the Asus support site.
I will be running the memtest overnight tonight. I hope the 12 gigs wont be an issue.
As far as driver verifier goes, I have no problem chancing that my system wont recover. I have reinstalled this system a number of times over the last few weeks.
I have been wondering if I should remove 6 gigs of ram & see if that makes a difference.
I will keep you updated as I try things out.