Production Kits: Re-Upped

...with more on the way.

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Here's what we've got so far:

9th Wonder
Alchemist, The
DJ Premier
Dr. Dre
Heatmakerz, The
J Dilla
Jay-Z Construction Set
Just Blaze
Kanye West
Lil Jon
Lox, The/D-Block
Mobb Deep
Nas
Neptunes, The
Pete Rock
Scott Storch
Swizz Beatz
Timbaland
Wu-Tang Clan