I have a large Java app that is split up into multiple projects. Each project has its own folder in a Subversion repository like so:
AccountingCore
Yes. just checkout at the root path. If your repo is hosted here:
svn://host/path/AccountingCore svn://host/path/Common svn://host/path/WebCommon
Then do your git svn command on svn://host/path.
git svn
svn://host/path