This is a nice one if you want to get your hands dirty but don't know where to start.
Pretty easy to programm
Features:
Simple, easy to use interface - 16 voice polyphony - 1, 2 or 4 oscillators in each voice - True stereo mode - Two volume envelopes - 5 different oscillator waveforms - Waveforms effectively anti-aliased - Pulse width/diustortion - 4 different resonant filters - 2 LFO's with 8 different waveforms (incl. random) - Portamento & Autobend - Stereo FX (Chorus, Flanger, Delay etc.) - Overdrive - LFO and FX temposync - Several MIDI-controllers implemented - 64 presets
http://www.bojo-software.com/?Software:VST_plugins:Impulse_synth