CompuChem:
Software for drawing chemical structures, visualize laboratory
experiments, teaching, 3D visualisation of molecules and quantum
chemistry.
http://www.compuchem.com
Linux for Chemistry CD-ROM Project:
Bundles over 1 Gb of chemistry software, pre-built for the Linux
operating system. Contents, screenshots, and ordering.
http://www.randomfactory.com/lfc/lfc.html