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Here is a really good find.
Bioshock is all the rave lately. Lowest reviews I've seen across the board is 95%. Some say its the most emotionally intense video game EVER made.
And some free artwork to boot!
Bioshock Art Book
System Shock II was an immense game, really difficult also, I hope they haven't simplified the game or dumbed it down for the xbox users, that would suck.