I would absolutely love a TRON theme. Here are my ideas.
Lightcycle Battle: 8.99 Comes with Sam and Clu with 2 lightcycles and the discs.
Quorra's Light Runner: 29.99 Comes with Sam and Quorra, the lightcycle, and the discs.
Flynn's Arcade: 44.99 Comes with Sam, Alan, and Sam's motorcycle. Inside, there are a bunch of arcade games, and the tron game that leads to the hidden room with the lazer thing.
End of the Line Club: 49.99 Comes with Castor, Gem, Sam, Quorra, Kevin Flynn, Clu, two Clu Henchmen, and two DJ's. Comes with bar tables, couches, Castor's private room, and the elevator.
Disc Battle: 14.99 Comes with Sam, Tron, one Siren, and two enemies.
The Hideaway: 24.99 Comes with Sam, Quorra, and Kevin Flynn. Also comes with bookshelves, three rooms, dinner table, and couches.
That's really about it for me...