Tone2 Firebird 2 is available for free now for Windows. This VST plug-in is a very good sounding synthesizer with a clear layout. Firebird 2 is easy to program and also comes with a lot of presets.
This synthesizer was the first with Tone2′s proprietary Harmonic Content Morphing (HCM) synthesis. This form of wavetable synthesis can also be found in Gladiator 2.