I have also found this site which lists many changes in different versions of all the Star Wars films. I do not know how acurate this site is or if there are more changes not listed.
They list the following for Episodes 1 and 2........
2001 Star Wars Episode I: The Phantom Menace DVD
Podrace grid sequence is extended
Air taxi sequence is reincorporated
2002 Star Wars Episode II: Attack of the Clones DVD
New dialogue added to the scene where Anakin confesses to the Tusken slaughter.
Additional sparks and smoke have been added to Jango Fett's jetpack shortly before his death to better present its malfunction.
After falling out of the gunship on Geonosis, a clone trooper asks if Padmé is all right. Her response of "Yes" has been changed to a more realistic groggy "Uh-huh."
Anakin's mechanical hand now holds Padmé's hand during the closing wedding sequence (this was originally included in the DLP theater release of the film).
Podrace grid sequence is extended
Air taxi sequence is reincorporated
2002 Star Wars Episode II: Attack of the Clones DVD
New dialogue added to the scene where Anakin confesses to the Tusken slaughter.
Additional sparks and smoke have been added to Jango Fett's jetpack shortly before his death to better present its malfunction.
After falling out of the gunship on Geonosis, a clone trooper asks if Padmé is all right. Her response of "Yes" has been changed to a more realistic groggy "Uh-huh."
Anakin's mechanical hand now holds Padmé's hand during the closing wedding sequence (this was originally included in the DLP theater release of the film).
I did see a site years ago which had pictures of the changes to the mechanical hand scene, and others but I cannot find it at the moment.