KTGranulator is a free delay line granulator available as a VST effect plugin.
Additive Virtual Synthesizer for Windows and Mac OSX.
MReverb is special reverb designed for mixing, particularly spatial positioning
EG70 is a physical modeling simulation of a CP-70 electroacoustic.
It lets you use DXi plug-ins in any DirectX-enabled application.
Vocal Magic Pro is a VST plugin for Windows based recording systems up to XP.