I just got a 60 gig player, I have over 100 albums on there (Including every album Charles Mingus has ever done) and I have only used about 20 gigs.
My ipod includes my all time perfect albums:
Alice Cooper - Billion Dollar Babies
Allman Brothers - At the Filmore East
Bad Brains - I Against I
Beach Boys - Pet Sounds
Beastie Boys - Ill Communication
Beatles - Revolver
Big Star - #1 Record
Black Flag - Damaged
Black Flag - Loose Nut
Black Sabbath - Paranoid
Blind Faith - Blind Faith
David Bowie - Ziggy Stardust & The Spiders of Mars
Byrds - Mr. Tamborine Man
Cake - Fashion Nugget
John Cale - Guts
Captain Beefheart & the Magic Band - Safe as Milk
Cardigans - First Band on the Moon
Johnny Cash - American
Clash - London Calling
Elvis Costello - Spike
Cream - Disralli Gears
Cure - Kiss Me, Kiss Me, Kiss Me
Dead Kennedys - Fresh Fruit for Rotting Vegetables
Dead Milkmen - Big Lizard in My Backyard
Derek & the Dominoes - Layla & Other Love Songs
Eric Dolphy - Candid Dolphy
Doors - The Doors
Duran Duran - Seven & the Ragged Tiger
Bob Dylan - Blonde on Blonde
Bob Dylan - Modern Times
Eminem - The Marshall Mathers Album
Ella Fitzgerald - Ella & Louis Again (w/ Louis Armstrong)
Funkadelic - One Nation Under a Groove
Marvin Gaye - What's Going On
Grateful Dead - American Beauty
Guns N' Roses - Appetite for Destruction
Jimi Hendrix - Are You Experienced?
Langston Hughes - Weary Blues (w/ Charles Mingus)
Husker Du - Zen Arcade
INXS - Listen Like Thieves
Jane's Addiction - Ritual De Lo Habitual
Billy Joel - An Innocent Man
Kiss - Alive
Kinks - The Kinks Are The Village Greeen Preservation Society
Led Zeppelin - Houses of the Holy
John Lennon - Imagine
Love - Forever Changes
MC5 - Kick Out the Jams
Paul McCartney - McCartney
Metallica - Master of the Puppets
Charles Mingus - & Friends in Concert
Charles Mingus - Alternate Takes
Charles Mingus - Changes One
Charles Mingus - Changes Two
Charles Mingus - Charles Mingus Presents Charles Mingus
Charles Mingus - Complete Atlantic Recordings
Charles Mingus - Cumbia & Jazz Fusion
Charles Mingus - Debut Recordings
Charles Mingus - East Coasting
Charles Mingus - Fables of Fabus
Charles Mingus - Final Works
Charles Mingus - Jazz Portraits: Mingus in Wonderland
Charles Mingus - Jazzical Moods
Charles Mingus - Let My Children Hear Music
Charles Mingus - Live at Chateuville 1972
Charles Mingus - Live in Europe, Volumes 1 & 2
Charles Mingus - Me, Myself, & Eye
Charles Mingus - Meditations: Live in Paris 1964
Charles Mingus - Mingus
Charles Mingus - Mingus Ah Um
Charles Mingus - Mingus at Carnegie Hall
Charles Mingus - Mingus Mingus Mingus Mingus Mingus
Charles Mingus - Mingus Moves
Charles Mingus - Mingus Plays Piano
Charles Mingus - Mingus Revisited
Charles Mingus - Mingus Three
Charles Mingus - Modern Jazz Symposium of Music & Poetry
Charles Mingus - Mysterious Blues
Charles Mingus - Reincarnation of a Love Bird
Charles Mingus - Revenge
Charles Mingus - Right Now: At the Jazz Workshop
Charles Mingus - Something Like a Bird
Charles Mingus - Statements
Charles Mingus - Stormy & Funky Blues
Charles Mingus - The Black Saint & The Sinner Lady
Charles Mingus - The Great Concert of Charles Mingus (Prestige)
Charles Mingus - The Great Concert of Charles Mingus (Verve)
Charles Mingus - The Young Rebel [Box Set]
Charles Mingus - Three or Four Shades of Blue
Charles Mingus - Tijuana Moods [Deluxe Edition]
Charles Mingus - Timeless (Jazz Workshop)
Charles Mingus - Town Hall Concert (Blue Note)
Charles Mingus - Town Hall Concert (Prestige)
Charles Mingus - West Coast, 1945 - 1949
Ministry - The Land of Rape & Honey
Joni Mitchell - Blue
Modern Lovers - The Modern Lovers
Monkees - Headquarters
Morrissey - Viva Hate
Nine Inch Nails - The Downward Spiral
Tom Petty - Full Moon Fever
Pink Floyd - Dark Side of the Moon
Police - Outlandous d'Amour
Iggy Pop - Lust for Life
Elvis Presley - The Complete Sun Sessions
Prince - Purple Rain
Public Enemy - Fear of a Black Planet
Queen - A Night at the Opera
R.E.M. - Document
Red Hot Chili Peppers - Blood Sugar Sex Magic
Lou Reed - Transformer
Rolling Stones - Sticky Fingers
Rollins Band - End of the Silence
Sex Pistols - Never Mind the Bollocks, Here are the Sex Pistols
Gene Simmons - Sex Money Kiss [audio book]
Simon & Garfunkel - Bookends
Sly & the Family Stone - There's a Riot Going On
Smashing Pumpkins - Siamese Dream
Smiths - The Queen Is Dead
Sonic Youth - Daydream Nation
Bruce Springsteen - Nebraska
The Stooges - The Stooges
Talking Heads - Talking Heads '77
Television - Marquee Moon
They Might Be Giants - Flood
Traveling Wilburys - Volume One
U2 - Achtung Baby
Van Halen - Van Halen
Van Morrision - Tupelo Honey
Velvet Underground - Velvet Underground
Violent Femmes - Violent Femmes
Weezer - Weezer (The Blue Album)
The Who - The Who Sells Out
Brian Wilson - Smiile
Stevie Wonder - Innervisions
Weird Al Yankovic - In 3D
Yes - Fragile
Neil Young - After the Gold Rush
Frank Zappa - We're Only In it For the Money
and then some compilations from MOJO Music Magazine