Project organizer and time-tracking software?

[Kirk Strauser <kirk@strauser.com>]

I'm looking for some software to keep track of open projects, and the time
I've spent working on each.  I need to be able to track multiple clients and
multiple projects per client, and easily search for projects that are not
completed, have been invoiced but haven't paid yet, etc.  I tried using
PHPGroupware, but it just wasn't quite up to par as of a month or so ago
(although certainly far better than nothing).

I don't care if the app is Gnome, KDE, PHP/mod_perl, or Emacs based, as long
as it works.  Any suggestions?
-- 
Kirk Strauser
In Googlis non est, ergo non est.