GUI

There are a few GUIs for GROMACS.

Gmxg: a project by Filipe Maia, based on Qt and Pymol. Can be downloaded from the GROMACS cvs repository using cvs co gmxg
Guimacs: see http://pradeepkota.info/projects/guimacs/ or, since that link is broken, try http://www.bioinfo.de/isb/2006/07/0008/
Bioclipse: there is a plug-in to bioclipse for gromacs, http://wiki.bioclipse.net/index.php?title=Gromacs_plugin
Gromacs-gui: a KDE GUI for GROMACS, see http://www.kde-apps.org/content/show.php?content=47665 or http://resal.atspace.com/
Vmd-gromacs: Could VMD be used as a frontend for GROMACS
Pymol-gromacs: Could PyMol be used?
GOpenMol-gromacs: Could gOpenMol be used?
NanoEngineer-1_gromacs: Cross-platform, GPL, molecular CAD application that acts as a front-end for GROMACS