Very sorry about the problems over the weekend. I am overshooting my bandwidth at the end of every month, significantly helped by the automated blog spammers of the world. I'm instituting additional comment spam measures, including approval via this nice code for MT 2.6 from scriptygoddess (MT 3 has its own approval settings).
Unfortunately, from what I read the comment spammers are still going to be hitting my bandwidth as long as I leave comments turned on. Dirty buggers.