  This is a catalogue of approximately 70 X-ray emitting binary systems in the
Small Magellanic Cloud (SMC) that contain a Be star as the mass donor in the
system and a clear X-ray pulse signature from a neutron star. The systems are
generally referred to as Be/Xray binaries. It lists all their known binary
characteristics (orbital period, eccentricity), the measured spin period of the
compact object, plus the characteristics of the Be star (spectral type, size of
the circumstellar disk, evidence for NRP behaviour). For the first time data
from the Spitzer Observatory are combined with ground-based data to provide a
view of these systems out into the far-IR. Many of the observational parameters
are presented as statistical distributions and compared to other similar
similar populations (eg isolated Be & B stars) in the SMC, and to other
Be/X-ray systems in the Milky Way. In addition previous important results are
re-investigated using this excellently homogeneous sample. In particular, the
evidence for a bi-modality in the spin period distribution is shown to be even
stronger than first proposed, and the correlation between orbital period and
circumstellar disk size seen in galactic sources is shown to be clearly present
in the SMC systems and quantised for the first time.
