i guess http://wiki.splitbrain.org/wiki%3Aplugins should give youm a full list of plugins available. If you arent satisfied with doku maybe u should try another wiki system.
The following line should answer your questionQuote:
Users please keep in mind the plugin API is still experimental and may change frequently, some plugins may not work due to API changes. If you encounter a non working plugin please contact the author and ask for an update.