The entire Earthbound soundtrack, The entire pokemon soundtrack (First 2 games), The entire Metroid soundtrack (first 4), Various songs from sonic games (Instrumentals, not Crush 40 and such. But Supporting Me was pretty good), Howl of the Departed from the Lost Odyssey, a few songs from Minecraft, and the entire soundtrack from the first 2 Golden Sun games.
Most of these I just use for the MIDIs because they make terrific samples