TSE Audio has released the R47 stompbox emulation of a famous rodent-pedal for Windows and Mac OS X (10.5+) VST and AU.
R47 can offer a crystal clean sound on its lowest distortion setting, to a dirty high-gain beast on its highest setting. The tone control gives you control over the overall brightness/fizzyness.
Use this plug-in infront of an amp-sim or alone of a cabinet simulation and spice it up with your favourite effects.
Price: Free.