I'm guessing that it is probably piston rings but i've also heard that it is normal for the car to smoke between shifts. I can't imagine that's right. Also i do lose between 1.5 and 2 quarts of oil every 5k miles.
http://s85.photobucket.com/albums/k58/bzubke1/?action=view¤t=100_0106.flv
http://s85.photobucket.com/albums/k58/bzubke1/?action=view¤t=100_0106.flv