Memory overclocking
MSI Z87 tweaks
Thaiphoon burner - edit XMP profiles on DDR2 and DDR3
http://www.softnology.biz/index.html
Intel 2600K Sandy Bridge spec:
http://download.intel.com/design/processor/datashts/324641.pdf
Vdroop, VCC etc.
http://www.thetechrepository.com/showthread.php?t=126
MSI Beta Bios's for the P67A-GD65
Utilities
HWMonitor (monitor and log voltage, fan speed, temperature everywhere and power usage)
Coretemp (monitor core temperature and can show them in the display of logitech g15, nice when running tests)
Benchmarking and stability testing
3Dmark06 benchmark your GFX and CPU from futuremark
Atto benchmark your disks
Stability testing
OCCT (linpack - torture your CPU cores to measure heat)
Intel Burn test (linpack - torture your CPU cores to measure heat)
Prime95 (torture your CPU cores to measure heat)
Tweaking
Thaiphoon (memory spd tweak)