We present the analysis of multi-wavelength XMM-Newton data from the Seyfert galaxy NGC 3783, including UV imaging, X-ray and UV lightcurves, the 0.2−10 keV X-ray continuum, the iron Kα emission line, and high-resolution spectroscopy and modelling of the soft X-ray warm absorber. The 0.2−10 keV spectral continuum can be well reproduced by a power-law at higher energies; we detect a prominent Fe...