Rodent Regatta

I use the Berkeley database behind the scenes of this weblog. Does anyone know of a plugin or tool that turns comments off after an entry reaches a certain age? I’ve seen such things for those who use MySQL behind the scenes, but I’m told that switching from Berkeley to MySQL poses great risks – particularly for those who don’t understand all the issues. I’m willing to consider any proposal you savvy Movable Type experts have for making that switch for me or coaching me through it.

Is this expected to be a feature in Movable Type 3.0?