Discovery 4

On the ISS you can see the European Space Agency habitat just left of the docking port #5 where the Shuttle will dock.

The satellite looking thing in the Shuttle cargo bay is the Leonardo Multi purpose logistics module (a mouthfull!) which has 8 TONS of supplies in it that will be transferred to the Station AFTER it is taken out and hooked up to the station on Tuesday afternoon.

Also the beginning of the Flip maneuver to inspect the Shuttle tiles.