  We discuss supersymmetry breaking via 3-form fluxes in chiral supersymmetric
type IIB orientifold vacua with D3- and D7-branes. After a general discussion
of possible choices of fluxes allowing for stabilizing of a part of the moduli,
we determine the resulting effective action including all soft supersymmetry
breaking terms. We also extend the computation of our previous work concerning
the matter field metrics arising from various open string sectors, in
particular focusing on the 1/2 BPS D3/D7-brane configuration. Afterwards, the
F-theory lift of our constructions is investigated.
