While poking around the sk-note site, I noticed this intriguing plugin called
SoundBrigade.
It's basically a dynamic equalizer, but with a very different approach from any other dynamic EQ I've seen. At first glance, I thought: I can do all that with MDynamicEQ and/or MSpectralDynamics. But upon further examination, it appears to be capable of more than just straight-up dynamic equalization, including pretty radical soundshaping. As with all of his plugins, the price is quite reasonable - 30 bucks.