time lapses always look nice, but sometimes are over done, (mtv kills time lapses on their shows), but its good for time perspective and putting on certain moods.
my favorite is to do the dramatic flashing between scenes, where you keyframe the levels spiking up and down 2 times, with a blur, as well as adding a slight hue change with it to be more dramatic. i saw this effect a lot in the movie man on fire. theres lots of tutorials at
www.creativecow.com