Constant BSoD's, Needing Help.

Hello,

So I am having a really nasty issues with my computer. On a daily basis, I will get between 2-7 BSoDs.
I have been getting them ever since I built my PC (Approx 3 years ago), but they have never been this bad. It only used to occur while gaming, but now it'll happen when watching movies, browsing, or just sitting idle. I know, I probably screwed something up while building it. But I have no idea what I did, or what I can do to rectify the situation.
To make a long story short, I have tried:
Re seating the CPU, using new thermal paste, and a liquid cooling system to prevent overheating
Switching the primary hard drive and reformatting many many times.
Running system/memory tests, to no avail
Swapping the RAM from 1&2 slots into 3&4 (This actually stopped my BSoD's! For two days...)
I am ready to pull my hair out, because I am now fearful to play any competitive games, for fear of disconnecting mid-game.
Two other issues that I believe to be related: 1, my boot time is ever increasing. A reformat will reduce this some, but only temporarily. 2, Some drivers will out of nowhere completely stop working until I reboot. Items such as my headphones, sound, keyboard, mouse, and webcam will all stop functioning.
I have no idea if these are actually related, but they started happening at the same rate as the increased BSoDs.
Also, here are a few of the error messages I have been receiving (This is over a 2 day span): Reference by pointer x7, IRQL not less or equal x2, page fault in non paged area x1.
After doing some research, the most common factor seems to be RAM. But before I pull the trigger and buy some more, I wanted to see if I could get any help!
Sorry for the mini book up there, I am just lost.

Here are my specs:

Motherboard : GigaByte Z68XP-UD3
BIOS : Award (OEM) F10 03/20/2012
Total Memory : 7.86GB DIMM DDR3

Processor : Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz (4C 8T 4.29GHz, 4.3GHz IMC, 4x 256kB L2, 8MB L3)
Socket/Slot : FC LGA1155

Chipset
Memory Controller : Intel Core (Sandy Bridge) DRAM Controller 100MHz, 2x 4GB DIMM DDR3 1.33GHz 128-bit

Memory Module(s)
Memory Module : 4GB PC21300U
Memory Module : 4GB PC21300U

Graphics Processor: NVIDIA GeForce GTX 560 Ti (384SP 8C 1.8GHz, 512kB L2, 1GB 4.21GHz 256-bit)

Storage Devices
Seagate ST9500420ASG (500.1GB, SATA300, 2.5", 7200rpm, 16MB Cache) : 466GB
Hitachi HDS721050CLA362 (500.1GB, SATA300, 3.5", 7200rpm, 14MB Cache) : 466GB
Seagate ST31000524AS (1TB, SATA600, 3.5", 7200rpm) : 932GB
WDC WD3200AAJS-60M0A0 (320.1GB, SATA300, 3.5", 7200rpm, 8MB Cache) : 298GB
WDC WD3200AAJS-60M0A0 (320.1GB, SATA300, 3.5", 7200rpm, 8MB Cache) : 298GB
SAMSUNG HD642JJ (640.1GB, SATA300, 3.5", 7200rpm, 16MB Cache) : 596GB
CORSAIR CMFSSD-64GBG2D (64GB, SATA300, SSD) : 60GB
ASUS DRW-24B1ST a (SATA150, DVD+-RW, CD-RW, 2MB Cache) : N/A

Network Adapter : Realtek PCIe GBE Family Controller (Ethernet, 1Gbps)


Operating System: Microsoft Windows 7 Ultimate 6.01.7601 (Service Pack 1)

If I am missing anything, let me know!

Thanks in Advance!