I tried to post all these as one, but it didn't work, so here's part II:

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Here's my thoughts on a VERY BASIC overall outline for the prequels:

Episode I should establish the galaxy as being a good place, peaceful and just. But as the film goes on, we start to understand that there's something terribly wrong bubbling beneath the surface. Anakin should be about Luke's age or older, and should be exactly as Obi-Wan described him in ANH (I like Bingowings' ideas here).

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Sorry guys, this doesn't seem to be working. These last two posts are less than half of what i'd originally written as one post, and now it won't let me post the next part at all, so I'll just try this again later.