Tom Collins sent me the FreeBSD ports patch with code to enable spamassassin. It pretty much did the whole job except for the pw_gid flags, some configure.in changes and a new vmoduser option to disable spam assassin.
So the patch is ready ahead of schedule, whoo hoo!
I had posted that to the list a while ago hoping it could be added (I dont know how to use sourceforge cvs), anyways, im happy its being used.
Soon i might send in a patch to use bogofilter with it, as bogofilter is written in C/C++ it should be faster than AS.