Synthcore 2.1 Poly, beta1 (Win32)
Synthcore 2.1p is a beta release of Synthcore Polyphony, with 8 spectacular voices (you will need at least a 3Ghz i3 or 1.6Ghz i5 with 2GB of memory).
Synthcore 2 is one of the most powerful analog emulation synthesizers ever made, based on features from the OSCAR and Waldorf Q (both of which, as you may know, were discontinued because they were too expensive to build in hardware). The monophonic version is now available for free download in Windows 32/64, Mac OS X, and open-source Cycling'74 Max 7 code.
Electric for Reaktor 5+
The Electric metamusic ensemble is a multifunction, polyphonic analog emulation synthesizer providing professional-quality presets and comprehensive functionality in a clean, simple, and compact design.
Synthcore2 Bundle (Max7)
Godel5 (Reaktor 5.1+)
The Godel super arpeggiator excels at creating beautiful melodies because it is not just a one simple arpeggiator, but a fully polyphonic multi-arpeggiator with automatic chord generation and pitch remapping.