Hi Guys,
KeithC, thanks for the mention.
ConvSEO brings SketchUp (Free or Pro) models into DBPro as a series of individual objects that you can then manipulate in any way you wish. Collision is demonstrated in the included model viewer program and also in a DarkPHYSICS/DarkLIGHTS demo that Lee put together, which also comes with the plug-in.
However (bearing in mind I am no FPSC expert) it's my understanding that a SketchUp model would need to be converted to an entity in order to be used in FPSC.
One last thing... I cannot say for sure but I would not get too excited about the 3DS export from SketchUp Pro, in relation to DB. It's my understanding that there are data blocks in the file that don't follow the standard and thus prevent DB from importing the file. Hence ConvSEO, which imports the OBJ files that Pro generates, or the KML files (found inside the KMZ archive) that Free generates.
"The early bird may get the worm, but the second mouse gets the cheese."