  We construct new examples of models of metastable D=4 N=1 supersymmetry
breaking in which all scales are generated dynamically. Our models rely on
Seiberg duality and on the ISS mechanism of supersymmetry breaking in massive
SQCD. Some of the electric quark superfields arise as composites of a strongly
coupled gauge sector. This allows us to start with a simple cubic
superpotential and an asymptotically free gauge group in the ultraviolet, and
end up with an infrared effective theory which breaks supersymmetry dynamically
in a metastable state.
