This is mildly off the topic of Bobago Fett, that is, it has nothing to do with it (If we're taking votes, I'm definately on the side of it being Boba in both AotC and ESB, I think it adds to the character, and I love the mockups ben_danger has put together), but on the subject of Order 66, is it possible to have the Jedi Purge initiated by Palpatine behind Anakin's back? Leave off all the "we must now kill all the Jedi" drivel; I never thought it was well-reasoned, and even in Anakin's very suggestible state at the time, I don't believe that he would just rush off to kill younglings. If Sidious initiates it behind his back, he can then say to Anakin later that he had evidence that the Jedi as a group were dangerous or whatever, blah, blah, blah. The way Anakin just agrees to execute them all without even a flinch doesn't match the character in the rest of the prequels. I would, however, believe that he would rush off to Mustafar to execute the Separatist leaders on Palpatine's say-so. There's also so much extraneous dialogue in that sequence, I would suggest removing as much of Palpy's figurative mustache twirling as possible.
Even the storming of the temple might work as part of the basic order 66 montage if we leave off the scene of Anakin killing the kids (say, if we could get Palpatine to say something like "Go to the temple. Then go to Mustafar and wipe out the Separatist leaders" (a paraphrase). Anakin and the 501st might even be able to take the temple without much blood: after all, Anakin is a member of the Jedi Council and a legally-recognized advisor to the Chancellor. The slaughter could begin after he leaves, and he could ostensibly be there just to revoke their "badges" or military commissions or something. I don't know. I'm mostly just brainstorming right now. I will see if I can work on a script or slap a basic proof-of-concept edit on it.
If all of this didn't hinge on the logical leap of "the Jedi Council didn't tell me about their plans to confront Palpatine, and Mace tried to make the same choice about Sidious as I did about Dooku, so obviously now I need to slaughter every last child in the Jedi Temple" I wouldn't have a problem with it, but as it is, I can't take it at all.