After a bit of thrashing around, I just got EditLive! working as my blog editor with wordpress. I'm using AJ's (currently) private wordpress integration to do this. The lesson learnt with this is that his integration depends on not having the default visual editor enabled.
I am now a happily using EditLive! 
, and enjoying the fact that I am using a pre-release version with cool new features that makes adding plugins like Heading HotKeys trivially easy.
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