Halo 2 Collector's Edition - Already had 49.99 paid for thanks to the 4 for 1 trade-in and the cheap 4.99 Circuit City games had back in the winter time, and I paid the extra money it cost to switch over whenever I stopped by EB.
Fable - same as Halo 2, but without the extra money business since it's only 49.99.
Star Wars KOTOR 2 - definitely looks like the same old fun that KOTOR was, but with extra stuff.
Kingdom Under Fire: The Crusaders - I loved the Dynasty Warriors series back on the ps2, but this looks so much better and seems to provide a whole lot more. I'll be picking this up at Gamerush for 39.99 or 29.99 if they keep their trade-in any game and get $10 off.
Resident Evil 4 - The RE series is the only thing I like so far about the GC (disliked VJ, Pikmin, SSBM, Eternal Darkness, and Skies of Arcadia), but the RE series is the reason why I picked up the GC for 99.99 in the first place and the 2 exclusive RE's were not letdowns so I'm not disappointed in the GC. RE 4 will probably determine for me if the Gamecube was worth it or not.
The xbox versions of Doom 3, Farcry, Star Wars Republic Commando, Silent Hill 4, Advent Rising, + other games I'll decide when they get closer to come out, or when they are out and see what many others think about them.
I have tons of Gamerush credit (about over $400 as of now) I've been saving up for future games.