Chopitch, VST Pitch Shifting with a difference.
Features
dramatic pitch swoops in perfect time with the music
make drums sound bigger without losing the attack
intelligent gating system
instant octave down, play bass lines on any instrument
none of the uneven sounds typical of pitch shifters
no added delay, such as is always present in pitch shifters
pitch can follow the volume of the input signal, for "talking drum" type effects
remix beats to make them your own
take any percussion instrument, and make it sound larger with lower pitch and longer decay
dramatic flanger type sounds, triggered by the beat