Ultimate PS2 library!

OK, I can't afford to get EVERY game on the PS2 (my favorite gaming platform... well not counting the Vectrex), but I've been amassing a moderately impressive PS2 library for some time.

Here's what I have:
Alien Hominid
Batman: Rise of the Sin Tzu
Batman Vengeance
Beyond Good and Evil
Bully
Capcom Greatest Hits vol. 2
Chulip
Destroy all humans!
God of War
God of War 2
Guitar Hero
Grand Theft Auto 3
Grand Theft Auto Vice City
Grand Theft Auto San Andreas
Escape from Monkey Island
Fatal Frame II: Crimson Butterfly
Harry Potter Quiddith World Cup
Haunted Mansion
Ico
I-Ninja
Incredible Hulk: Ultimate Destruction
Justice League Heroes
James Bond: Everything or Nothing
Peter Jackson's King Kong
Katamari Damacy
Kya: Dark Lineage
Lego Batman
Lego Indiana Jones
Lego Star Wars
Lego Star Wars: Original Trilogy
Leisure Suit Larry Magna Cum Laude
Lord of the Rings: Two Towers
Mad Maestro!
Matrix: Path of Neo
Metal Slug Anthology
Metal Gear Solid: Sons of Liberty
Mark of Kri
Maximo: Ghosts to Glory
Maximo vs. Army of Zin
Midway Arcade Treasures vol 2
Monster House
Onimusha: Warlords
Pac-Man World 2
Pirates: Legend of Black Kat
Pitfall: The lost Expedition
Prince of Persia: The Sands of Time
Prince of Persia: The Two Thrones
Psi-Ops
Psychonauts
Ratchet and Clank
Rathet and Clank Going Commando
Ratchet and Clank Up your Arsenal
Red Dead Revolver
Resident Evil 4
Rygar: The Legendary Adventure
Shadow of the Colossus
Shadow of Rome
Silent Hill 3
Simpsons Hit and Run
Simpsons Game
Sly Cooper and the Thievius Racoonus
Sly 2: Band of Thieves
Spider-Man
SpongeBob: Atlantis Squarepantis
SpongeBob: Creature from the Krusty Krab
Star Wars: Battlefront 2
Star Wars: Force Unleashed
Star Wars E3: Revenge of the Sith
Stuntman Ignition
Swashbucklers: Blue vs Grey
Tak and the power of juju
Tak 2: Staff of dreams
Tak: the great Juju challenge
Tak and the Guardians of Gross
Tomb Raider: Legend
Trapt
Twisted Metal: Black
Wall-E
Up
War of the Monsters
The Warriors

And here's what I planning on getting:
Okami
Klonoa 2
Tony Hawk Pro Skater 3 (Hey, Metacritic says it's the #1 PS2 game!)
Viewtiful Joe
Disaster Report
Red Faction
Mystic Heroes (which was great on the Game Cube)
Jak and Daxster (which I played to completion but for some reason don't own)
Ultimate Spider-Man
Devil May Cry

So, given all of those titles (and that I really don't play sports games) are there any must play or important PS2 titles missing from my collection? Post your recommendations below!

No time for games, Dr. Jones!!

For the first time in my career, I am faced with a terrible (well, I think it's terrible) problem. I have a huge stack of games and no time to play them. You must understand, this violates everything I believe in as a game creator. Early on in my career, I vowed that I would never be one of those people in games who didn't play games. I worked with too many people who did (and some who even took pride in their non-game playing.)

In order to understand games, in order to make games, in order to be relevant, YOU MUST PLAY GAMES. So, I have a big stack of games. What I want from YOU (and I know you are out there) is recommendations of which ones to play first. Some of these I've started to play, others of them I haven't even unwrapped yet.

Here's the list:

Resident Evil 5
Left 4 Dead
Heavenly Sword
Viking

Bioshock (played two levels)
Half Life 2
Ratchet and Clank: Tools of Destruction

Prince of Persia (2008)

Resistance 1

Resistance 2
Dead Space (played first chapter)

Kung Fu Panda
Crayola colorful journey (don't ask)

Psychonauts (played first two worlds)
Dawn of War II

Give me your list and I'll maybe I'll write up some mini-reviews!

Thanks in advance!