David Haye KO's Vincenzo Rossitto
http://media.putfile.com/Haye

Ray Mercer KO's Tommy Morrison (Brutal, Extremely Hard to Watch)
http://media.putfile.com/MercerKOMorrison

David Tua KO's John Ruiz
http://media.putfile.com/Boxing-DavidTuaVsJohnRuiz

Junior Witter KO's Giuseppe Lauri
http://media.putfile.com/Witter-KO-Giuseppe

Oleg Maskaev KO's Hasim Rahman and Knocks Him Out of the Ring!
http://media.putfile.com/HasimRahmanKOd

Sam Peter KO's Jeremy Williams
http://media.putfile.com/Peter-KO_0001

George Foreman Versus Ron Lyle III Round 4 and 5 (Great Heavyweight Slugfest, Very Good Watch)
http://media.putfile.com/ForemanLyle3

Alexis Arguello KO's Kevin Rooney in the 2nd Round (Shows You Just How Sharp Arguello Was)
http://media.putfile.com/ArguelloRooney

Wayne Alexander KO's Alekzander Takaloo (Perfect Left Hook, Tak Didn't Have A Chance)
http://media.putfile.com/takawho

Thomas "Hitman" Hearns KO's Roberto Duran (HUGE Straight Right Hand)
http://media.putfile.com/Hearns-Duran

Jose Luis Castillo KO's Diego Corrales
http://media.putfile.com/round4/original

Kostya Tszyu Highlight Reel
http://youtube.com/watch?v=sUsh9NqRsT4&search=Tszyu

Thomas Hearns - Marvin Hagler Round 1
http://youtube.com/watch?v=FuYclaefqPQ&search=Hagler

Thomas Hearns - Marvin Hagler (Full fight)
http://youtube.com/watch?v=Ec7N362EGng&search=Hagler

Naseem Hamed - Kevin Kelley (Great fight...if you can make it to the fighting part without puking)
http://youtube.com/watch?v=ul2kCjwwoPE

Floyd Mayweather Highlight
http://youtube.com/watch?v=VZBr-h2_hEs

Emmanuel Augustus Highlight
http://youtube.com/watch?v=n6z2UE0hdT8&search=Augustus

Jose Luis Castillo - Diego Corrales
http://youtube.com/watch?v=VrtoOVhscv0&search=Castillo

Arturo Gatti - Mickey Ward Trilogy Highlights (Greatest trilogy ever imo)
http://youtube.com/watch?v=tSBmL7tNVsU&search=Gatti

Muhammad Ali Tribute
http://youtube.com/watch?v=mJ5z8niAP...Muhammad%20Ali

Julio Cesar Chavez versus Roger Mayweather
http://youtube.com/watch?v=luVxCymtb...Cesar%20Chavez

Sugar Ray Robinson Tribute
http://youtube.com/watch?v=_tnTVXVkj...Ray%20Robinson

Mike Tyson Highlights
http://youtube.com/watch?v=sBy4uNPyL...h=Mike%20Tyson

Bernard Hopkins and Roy Jones Talkin Trash
http://youtube.com/watch?v=qDKAH-t25L4&search=Hopkins

Roy Jones Jr. Highlight
http://youtube.com/watch?v=bXdBKn8_f...ch=Roy%20Jones

Lennox Lewis - Andrew Golota
http://youtube.com/watch?v=S5Zasc1UNYk&search=Lennox

Rahman KO's Lewis
http://youtube.com/watch?v=0ZHh8ixQCq0&search=Rahman

Lewis KO's Rahman
http://youtube.com/watch?v=bxp_JoSNGMU&search=Lennox

ESPN's Top 10 KO's
http://youtube.com/watch?v=0lwc0Wnud...st%20Knockouts

Morales - Barrera 1 Highlights
http://youtube.com/watch?v=bPzpgGVwMQk&search=Morales
And for comedic releif...

Kostya Tszyu KO's Zab Judah
http://media.putfile.com/zab3

Err...I had some more I wanted to post but I can't remember them. I would reccomend watching all of these.

Post em if you got em