I've made a small bugfix and am taking that occasion to blog about my little Eclipse Plug-in that automatically draws suffix trees with Dot/Graphviz for an entered text (in the context of the Suffix Trees for Natural Language project), which is installable from our update site at http://www.quui.com/updates.
The usage for this is mostly for visualization of suffix trees, e.g. for teaching or publications. The plug-in supports word- and letter-based trees as well as reversed suffix trees ('prefix trees'). The tree can be exported in the dot format. To use the plug-in, after installing it via the update site, select Window -> Show View -> Suffix Trees for NL -> Suffix Tree Visualization.