OSTs on my ipod:
Ennio Morricone anthology
Bladerunner
All LotR STs
Inception
Machinarium (Video Game)
Monkey Island 2 SE (VG - a fan made one that was posted over at the International house of mojo forums)
All Pirates of the Carribean
Red Dead Redemption and Undead Nightmare (VG)
and of course the original trilogy Star Wars Soundtracks