Some good stuff to start off with:
Kanye West - Two Words, Touch the Sky, Flashing Lights, Amazing, Dark Fantasy (one song for each album)
The Notorious B.I.G. - Big Poppa, Juicy, Machine Gun Funk
Tupac - California Love, I Don't Give a (Beep)
OutKast - B.O.B., ATLiens, Ms. Jackson, Gasoline Dreams, Roses
Jurassic 5 - What's Golden, Thin Line
Dilated Peoples - Worst Comes to Worst
J. Cole - Return of Simba, Work Out
Twista - Slow Jamz
Nappy Roots - Po' Folks, Kentucky Mud, Back Home
Ice Cube - It Was a Good Day, Check Yo' Self
Eminem - Stan (I'm not a huge Em fan yet, but this song is undeniably brilliant)
I wish I could help you out more, but I'm a rap newbie too. :P
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Nominate Tallahassee (Zombieland) for the BFC!
"You know what they call Twinkies in Mexico? Los Submarinos!"