I like using Audition's multi-band compressor for de-essing. ReaXcomp works very well also, and is free (plus you can keep adding as many bands as you need).
Thanks for the reply, Despised. Do you find the Audition MB compressor fairly effective? Do you use the existing preset?
I've seen ReaXcomp, but never tried it Is that available individually -- or just in a suite?