Nice! I'm actually working on a similar project to push lsof and files from /proc into some postgres tables. Lets me do cool things like query log files across a ~6000 server infrastructure similar to:
SELECT distinct(l.name)
FROM lsof l, lsofer_runs r
WHERE l.lsofer_id = r.id
AND fd_type = 'REG'
AND l.fd ~ '[0-9][uw]'
AND l.name like '%log'
GROUP BY l.name, r.hostname
ORDER BY name
