For future review...

• PGCluster - not sure yet if this is what I want, but it looks close.
• Gfarm file system - again, 75% sure. But my options are limited!
• Look for "dblink" in the PgSQL world. And this goes on the "holy crap that's cool, but not particularly relevant yet!" list
• Still don't have keywords and stuff figured out in SVN. Quick notes:
  • Manually: svn propset svn:keywords Id [YOUR FILE(s)]
  • In ~/.subversion/config , under the "auto-props" section:
    
*.php = svn:keywords=Id
*.module = svn:keywords=Id
README* = svn:keywords=Id
...
• SVK

There, that took care of about half a dozen open tabs in my browser!