Here's a quick script to reset ownership on a directory and then commit all changes (deletions, additions, and modifications) to subversion...
#!/bin/sh
_DIR="/path/to/my/svn/directory"
_DATE=`date +%Y\-%m\-%d\ %H\:%I\:%S`
_USER="Eric"
_GROUP="Eric"
# reset file ownership
find ${_DIR} -exec chown ${_USER}.${_GROUP} {} \;
# add new files
svn stat ${_DIR} | grep ^? | sed 's/^? /svn add "/' | sed 's/$/"/' | sh
# remove deleted files
svn stat ${_DIR} | grep ^! | sed 's/^! /svn del "/' | sed 's/$/"/' | sh
# commit modifications
svn commit ${_DIR} -m "Automated Commit: ${_DATE}"