Walmart Security, i'm not sure; i know they are affiliated, but i dunno if Kool Keith is another of his aliases
since you want more, here comes a giant list
Jedi Mind Tricks - "On The Eve Of War", "All Shall Perish", "Heavy Metal Kings", "Shadow Business", "I Against I", "Rage of Angels", "Battlecry", "Gorillas", "Henry the 8th", "Feast of the Wolves",
Lupe Fiasco - Kick, Push II
DJ Format - 3 feet Deep ft. Abdominal & D-sisive
DJ Format - We Know Something You Don't Know (you might have seen images of a guy in a bear costume breakdancing, this is the song and music video it's from)
Talib Kweli ft. UGK - ****ry Cuzins
DJ Shadow ft. Mos Def - Six Days
Wu-Tang Clan - "C.R.E.A.M." "Triumph" and "Gravel Pit"
Mark Ronson ft. Nate Dogg & Ghostface - Ohh Wee
Cannibal Ox - Iron Galaxy
The Roots - Boom!
The Avalanches - Frontier Psychiastrist
Beastie Boys - "Intergalactic", "Ch-Check It Out"
Fort Minor - Believe Me
RJD2 - Ghost Writer (this is an instrumental; there's a remix floating around but it's impossible to find. The mix version is in my sig.)
Nas - "The World Is Yours", "Hip Hop is Dead" and "Can't Forget About You"
Outkast - "B.O.B. (Bombs Over Baghdad)"
Joe Budden - Pump it Up
Busta Rhymes & Method Man - What's Happenin'
Method Man & Redman - Da Rockwilder
Redman ft. DJ Kool - Let's Get Dirty
KRS-One - "MC's Act Like They Don't Know" and "My Life"
some old school stuff:
Funkdoobiest - Rock On
Souls of Mischief - Step To My Girl
Skeelo - I Wish
Naughty By Nature - O.P.P.
Kris Kross - Jump
Run DMC - "Rockbox" and "King of Rock"
Sugarhill Gang - "Apache" and "Rapper's Delight"
Grandmaster Flash & The Furious Five - The Message
A Tribe Called Quest - Scenario
Rob Base & DJ EZ - It Takes Two