First, I turned off the "must be logged in to write comments" option. Danny had complained. Wuss. So to avoid spam, I tried to turn on Akismet. I have no idea if this is going to work. I shall see.
And to top it off, the ChenPress Editor uses a nice spell checker that is free and usable all over the web. Check out IESpell !
I may want to allow WYSIWYG editing on the comments, but that is a battle for another day.