molproView is a web-based tool for graphical display of the output of Molpro jobs
Pacific Northwest National Laboratory provides a basis set archive which can deliver orbital basis sets in a form appropriate for MOLPRO:
[original][UK mirror]
The MOLDEN program can be used to plot orbitals, densities, and normal modes produced by MOLPRO.
Chemcraft is a graphical program for working with quantum chemistry computations.
The file molpro.el implements a MOLPRO-aware emacs major mode that can simplify job preparation, submission and examination.
The Global Arrays Toolkit is needed to compile parallel MOLPRO.
Porland keep a list of tips for building MOLPRO with their compilers.