Thanks everyone for their replies. I hadn't heard of Log::Log4perl before, and it looks like an excellent solution...a very near match to what I had envisioned. It looks like I may need to handle returning errors to the user's browser seperately, but that may be a Good Thing anyway.

I'm also now considering just logging everything to STDERR now for performance and consistency, and possibly running a cron job at off-peak hours to parse the logs for anything I might want to stuff in a database for easier review and handling.

-mark