OverTone DSP has added Mac VST support to their 500-Series plug-ins.
The EQ500 and DYN500 plug-ins provide CPU efficient channel EQ and dynamics processing. The EQ500 uses analogue filter modelling algorithms to provide a natural sounding EQ curve without requiring high sample rates or upsampling, while the DYN500 provides soft-knee compression with a gentle tape-saturation style overdrive at high levels.
Now available as Windows VST, Mac Audio Unit and Mac VST Plug-ins. This is a free addition for existing users, download and free demo at: OverTone DSP