I’ve tried Performancing and can’t say I was a big fan. I still have to use my browser so I might as well log into my blog admin. Flock is the same idea. I have used Etco in the past and it’s amazing, however I haven’t spent the money for it. I’ve tried Mars Edit which feels like a lacking Etco and I’ve tried Qumana; twice.
The last time I tried Qumana it sucked. I’ll be honest. It either didn’t work the blog platform I was using or what, but now that I’m running WordPress, I’ll try it again. People are talking good things about it so we’ll give it another go and it is free.