Does anyone reading this use any plugins with WordPress to slow comment spam? If so, what do you use and does it work well?

I just added Spambam to my plugins, and am hoping that it will keep spam down to a handful (2-3) rather than dozens (60-100) at a time. We shall see.

If that doesn’t work, I have a captcha plugin installed that I just need to activate. I assume that would stop spam cold for a while, maybe a few months, before the bots get it figured out and the spam comes back.