“You'll take our Ecto license when you pry it from our cold, dead hands!”
Provided you've already got a blog set up, Ecto is what I'd suggest for composing and posting efficiently. [From PCWorld.com - Mac Skeptic: Be a Blog Author] Don't forget that ecto for MacOSX also has support for Amazon, Technorati tags, del.icio.us bookmarking, scripting (not only AppleScript, but also Perl, Python, etc.), Automator actions, iPhoto import, image manipulation, WYSIWYG editing, and so on. And the Windows version of ecto is getting better and better as well.
A list of new features of ecto 2 is already listed in the ecto forum, but let's get the cool things in order.
ecto recommended in a review.