Here are the manufacturers’ guides to installing their processors 
Socket A(Athlon/Duron/Sempron socket a)/socket370(Pentium 3 some cellys):
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23986.pdf
AMD K8 (Inc A64, K8 Sempron and opteron) (chapter 4 of this booklet):
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30925.pdf
Socket 423/478:
ftp://download.intel.com/support/processors/manuals/p4pman1.pdf
LGA 775:
ftp://download.intel.com/support/processors/sb/install775.pdf
Xeon:
800Mhz Bus: http://support.intel.com/support/processors/xeon/sb/CS-020150.htm
533Mhz Bus: http://support.intel.com/support/processors/xeon/sb/CS-007757.htm
512KB Cache: http://support.intel.com/support/processors/xeon/sb/CS-007757.htm
Arctic silver is by far the most popular TIM out there for Overclockers here are guides to apply it:
Exposed die CPUs (Socket A /socket370/some Xeon):
http://www.arcticsilver.com/arctic_silver_instructions_small.htm
Integrated Heat spreader CPUs (P4/Xeon/K8 lineage):
http://www.arcticsilver.com/arctic_silver_instructions_big2.htm
Some users prefer Ceramique (many those with W/C and phase change/Peltiers)
http://www.arcticsilver.com/ceramique_instructions.htm
This Guide will be updated as new processors/sockets are released – nefing u need added don’t b afraid 2 ask

Socket A(Athlon/Duron/Sempron socket a)/socket370(Pentium 3 some cellys):
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23986.pdf
AMD K8 (Inc A64, K8 Sempron and opteron) (chapter 4 of this booklet):
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30925.pdf
Socket 423/478:
ftp://download.intel.com/support/processors/manuals/p4pman1.pdf
LGA 775:
ftp://download.intel.com/support/processors/sb/install775.pdf
Xeon:
800Mhz Bus: http://support.intel.com/support/processors/xeon/sb/CS-020150.htm
533Mhz Bus: http://support.intel.com/support/processors/xeon/sb/CS-007757.htm
512KB Cache: http://support.intel.com/support/processors/xeon/sb/CS-007757.htm
Arctic silver is by far the most popular TIM out there for Overclockers here are guides to apply it:
Exposed die CPUs (Socket A /socket370/some Xeon):
http://www.arcticsilver.com/arctic_silver_instructions_small.htm
Integrated Heat spreader CPUs (P4/Xeon/K8 lineage):
http://www.arcticsilver.com/arctic_silver_instructions_big2.htm
Some users prefer Ceramique (many those with W/C and phase change/Peltiers)
http://www.arcticsilver.com/ceramique_instructions.htm
This Guide will be updated as new processors/sockets are released – nefing u need added don’t b afraid 2 ask