This oughta be fun...

Shadow of the Colossus

Sly Cooper 2-3

Ratchet and Clank (Up Your Arsenal, DeadLocked,)

Jak 2

Okami

Resident Evil 4

New SMBWii

No More Heroes

Metroid Prime Trilogy

Super Mario Galaxy

Valkyria Chronicles

Red Faction Guerilla

LittleBigPlanet

Demon's Souls

3D Dot Game Heroes

Resistance 2

Halo 3 ODST

Elder Scrolls IV Oblivion

Dead Rising

Mega Man 9

GTA IV and the Episodes from Liberty City

Rocket Knight

Secret of Monkey Island

Splinter Cell Chaos Theory

World of Goo

Warcraft 3

Starcraft

Beneath a Steel Sky

Diablo 1 & 2

Final Fantasy VII

Chrono Trigger

Dawn of Discovery

Fallout

Shadow Complex

The Legend of Zelda (NES original, A Link to the Past, Wind Waker)

Fable

I've set up an incredibly vague plan for the summer so that I can finish at least one of these games a week, and even that won't be anywhere near enough.