Glad to see you post, Tome! I haven't been able to download clip 2 yet due to Rapidshare's download limits, but clip 1 is very encouraging. I think the first greeting from Grievous to Sidious could be cut since Grievous pretty much repeats himself after Sidious acknowledges him; it also makes it seem like Sidious didn't hear him the first time.

I like the voice change. Since we don't get the info on Dooku's sacrifice here and lose the strong connection between this scene and the bridge scene, maybe a stronger connection with your bridge fight edit could be made by having Grievous use a line like "At last" when Anakin and Obi-wan first enter the bridge (if such a line exists)? Make it seem like there is a larger plan that Grievous is involved with from his very first appearance.