Wow, reading over this, I am realizing it could be a lot of fun to do an edit like this. Be a lot of fun to get a group of friends together and watched a totally screwed over version of Star Wars. It would work great as an abridged version of the film, editing the whole thing down to about 45 minutes or so, wouldn't be hard to do.

The Indiana Jones theme when Han shoots Vader's Tie and saves the day would be hilarious. The Steve Carrel thing would be great as well (I hate that joke so much, and all these retards that feel the need to constantly quote it, even when it is hardly applicable i.e. "Would you like salad dressing?" "That's what she said! HAHAHAHHAHA" really gets on my nerves. But using it during the Death Star battle would be pretty funny for an edit like this).

And if there were a few guys with some decent voice talent and recording equipment willing to do this, the cockney Artoo and Fonzesque Chewie could potentially, with some well written dialogue, be pretty funny.

On a related idea, I have always wanted to edit this scene into The Empire Strikes Back, http://www.youtube.com/watch?v=5blbv4WFriM&feature=related

That thing cracks me up everytime.

EDIT: Just discovered this one, http://www.youtube.com/watch?v=8gQozw40Mso&feature=related it goes on for a little too long, but shorten it to only two times and add an audio clip of JEJ laughing and it would be another great addition to a worst edit version of Empire Strikes Back.