  We have developed a model which aims to reproduce observational data of many
kinds related to cosmic-ray (CR) origin and propagation: direct measurements of
nuclei, antiprotons, electrons and positrons, gamma-rays, and synchrotron
radiation. Our main results include evaluation of diffusion/convection and
reacceleration models, estimates of the halo size, calculations of the
interstellar positron and antiproton spectra, evaluation of alternative
hypotheses of nucleon and electron interstellar spectra, and computation of the
Galactic diffuse gamma-ray emission.
  Recently our CR propagation code has been generalized to include
fragmentation networks of arbitrary complexity. The code can now provide an
alternative to leaky-box calculations for full isotopic abundance calculations
and has the advantage of including the spatial dimension which is essential for
radioactive nuclei. Preliminary predictions for sub-Fe/Fe, 10Be/9Be and
26Al/27Al are presented in anticipation of new experimental isotopic data. We
show that combining information from classical CR studies with gamma-ray and
other data leads to tighter constraints on CR origin and propagation.
