I found this on Youtube through a good friend of mine, Just watch, sit back and laugh!
These guys have commentary on every scene, its so hilarious

Best of RiffTrax's Star Wars


Part 1: A New Hope
http://www.youtube.com/watch?v=xEXxfhGybYw

Part 2: Empire Strikes Back
http://www.youtube.com/watch?v=37X1QJa79gI

Part 3: Revenge Of The Sith
http://www.youtube.com/watch?v=sMVLbkN3vKI