WheresBlackhawk, that was quite good. From my perspective, you definitely have the right vibe. The only thing I feel is lacking is a sense of Anakin's past. I feel his past neds to be marked with profound sadness in some way.
I look forward to your ideas for episode II.
About keepng the secrets (Vader=Anakin, Yoda's identity, Leia=Luke's sister) I wonder if it's worth botherwing with. After all, we can never replace the official prequels, and knowledge of these secrets is widespread outside of fan circles. So why not just use it to our advantage, or use it for some drama?