Red Giant Software has rev’ed their Trapcode Particular suite with support for the new Adobe CS5 products, but has gone way beyond a simple re-release and added several new features.

But Particular 2.1 goes way, way beyond the basics, with realistic natural effects, lighting control for shaded particles, 3D camera integration, custom shapes, depth of field, and physics controls such as air resistance, gravity and turbulence. Particular is used in motion pictures like Spider Man 3 and Angels & Demons

via Red Giant Software: Trapcode Particular 2.1.