A few things that I own:
limited edition:
The Operative: No one lives forever, ltd. edition, incl. Soundtrack CD
Press Samples:
Gumball 3000: disk in white PS2 case w/ cover + short manual
Mission Impossible: Operation Surma: disk in jewel case. Comes with A4 folder w/ press materials and a CD-Rom containing hi-res pictures, concept art (and trailers, iirc)
Kya: Dark Lineage: disk in jewel case. Comes with A4 folder w/ press materials, no disk on this one.
Wipeout Fusion: 2 disks in PS2 case (the ones, where one disk is in an extra tray that can be flipped over, hinges are on the small middle part of the case). One disk is the game disk, the other one contains press materials. The case has no cover (at least mine doesn't) and has an extra digipack/cardboard sleeve with "limited edition" printed on and a cool holographic cover showing an ingame shot.
EDIT:
Ribbit King is missing on the list in the first post. Developer is BanDai.
Deutschland sucht den Superstar (German Idol) is missing on the list.
Flucht von Monkey Island is missing, too.
The subtitle of "Wallace and Gromit" is "Project Zoo"