Something strange here, these dumps (3 of them) are all of the 22 of july... None for today.
Your latest errorlog entry is from the 23rd...where it seemed to have start a Startup Repair...
Did this happen over the course of 1,5days? Like from the 22nd at night into the 23rd trying to get the system back?
In this case you had 2 A's pointing to system files... and one C4 (what's in a name...) pointing to PnkBstrB.exe. Yhe latter is software that came with one or more games you play. Its purpose is to make sure you do not use game cheats and other help to gain an unfair edge in internet play against others. It could be there's a problem there but I doubt it. My guess is still HW or drivers.
Since we already tried graphics drivers, lets first do some tests:
It did try to do a startup repair at the time of the post, but the last time I tried(Which was the day before) it didn't give me any options besides System Restoring. Never found a problem.
I've been using PunkBuster for a while, I've heard that there are problems, but it's mainly just it thinking some background stuff is a virus/hook, and when the Bad Company 2 game was released it had many problems with it kicking people, but nothing like this. I've also used it for Call of Duty 4, and apart from lag(It does constant checks to see if you are cheating, annoying) it never caused a BSOD or anything.
As I said before, I had RAM in this box before that I did stress test in all four slots and had no problems whatsoever, but we decided to replace them because we thought they were the problem. Again, the RAM inside this box is BRAND NEW, no more than a few weeks old.
CPU is also brand new(Or refurbished I suppose), I sent in my old one because we thought it was a CPU problem(Instantly crashed when running the Prime95 stress test). I also remember stress testing the new one(Also only a month or so old) and it passed when I did it, so there's that.
I'm starting to think more and more that this is a motherboard problem rather than anything else, and what is a good, under $100 board that's reliable and would allow me to Crossfire(Or was the term SLI?) two 5770's later on? I'd also love it if the board would be able to allow me to OC my i2 to an i4, that would be great.