Originally Posted by DarkFi®e

The ones that I use most are:

Alienskin EyeCandy 5
Alienskin Xenofex 2
Andromeda Shadow
various Richard Rosenman plug-ins
(all) FlamingPear plugins
DigitalElement Aurora2
Panopticum LensProIII (also Fire3, Engraver, Alphastrip, and Digitalizer)


There are a few others too, just depends on what you want done.