  In treating the relativistic three-quark problem, a dressed-quark propagator
parameterization is used which is compatible with recent lattice data and pion
observables. Furthermore two-quark correlations are modeled as a series of
quark loops in the scalar and axialvector channel. The resulting reduced
Faddeev equations are solved for nucleon and delta. Nucleon electromagnetic
form factors are calculated in a fully covariant and gauge--invariant scheme.
Whereas the proton electric form factor $G_E$ and the nucleon magnetic moments
are described correctly, the neutron electric form factor and the ratio
$G_E/G_M$ for the proton appear to be quenched. The influence of vector mesons
on the form factors is investigated which amounts to a 25 percent modification
of the electromagnetic proton radii within this framework.
