Keep in mind that these are only suggestions. What you do is your responsibility.
Ok. I downloaded your zip files and took a look. You originally installed on 8/2/2012. I think you have both hardware and software problems.
First, the rig needs to be checked at physical electrical connections again, for something doesn't seem right hardware wise.
Then I suggest you do a drive format and a total reinstall to see how that goes for about a week or two, then load other software. You need to get this rig stablized before you go on. Your registry may be too far cluttered by now. You have a hell of a lot of dump files, so this thing crashed a lot! You loaded too much software all too soon, especially on a new rig. I would even suggest to load OS 7 to accomplish this. Then perhaps dual boot 8 to tweek it. That's the way I would go about it.
Suggestions/Questions:
#1, Have you or your friend checked to see if the BIOS, MOBO, processor (which 8 might be having a problem managing multi-core or needs to be configured), video card, peripherals, etc. are compatible with 8 before you built the rig?
#2. Your running Google Chrome -> Not compatible. Causes crashes.
#3. I can tell you're a gamer. Some program called DCGame.exe caused an app hang right off the bat 1st day. Doesn't look compatible. Usually what worked on 7 will work on 8, but not always. Are you using the compatibility mode when installing older software? A one dirt3_game.exe, StarCraft II.exe, Civilization V, Blizzard, are others.
#4. You have driver problems. Some, at times, don't load. Have you checked the Device Manager? There should be yellow warning signs there. What are they? Load correct drivers.
#5. Your System Information says you don't have any problem devices, but log files say that some device was not connecting. Possible loose connection?
#6. Somewhere along the line your computer name changed. Did you do that?
#7. You had a bad block on a cd you tried to install. Was it a restore disk?
#8. You had a lot of unexpected shutdowns. There may be trouble with the PSU. Possible loose wire? Overheating? Too less of wattage for your cottage? Bad power/plug protection strip?
#9. Do you overclock the core?
There's more, but I'm done for the night. Let me know what you think and/or do.
All in all you sent a lot of reports to M$ through the Customer Experience Improvement Program!