I have created a tool to extract all (or some) of the data from a Quake 3 BSP file.
The data is extacted to either CSV (comma seperated values) or other data file as suitable. Additionally it creates a verticedump file that contains all the Solid faces of the map which you can then import into a collision or physics engine such as NDB Newton.
Source is also included, and a code snippet that demonstrates loading the verticedump data into NDB Newton.
For more info you can read the REadMe here -
http://homepage.ntlworld.com/gfmcardell/files/bsp_extractor_readme.txt
You can download the program here (3166KB)
http://homepage.ntlworld.com/gfmcardell/files/bspextractor.zip
I hope you find this useful!
Find more Ratsoft Products here http://homepage.ntlworld.com/gfmcardell/index.htm
"Don`t try to engage my enthusiasm, I don`t have one"