Does anybody have suggestions on software I can use to
 invoice customers, and maintain records?
  Right now I'm using the PHP software from simpleinvoices.org
 and it works nicely, hosted on my own server, but I'm
 really not a fan of PHP.  (I've only been using this software
 for a few years to trial it, not in production.  So now is
 the time for me to look around for alternatives.)
  My requirements are very simple:
    * Maintain a list of "products".
      e.g. - Install Debian upon a server.
           - 30 minutes sysadmin work.
           - 1 years web-hosting.
    * Maintain a list of clients.
    * Generate "pretty" PDF invoices which I can mail to clients.
    * Keep track of which invoices are paid or owing.
  Any suggestions welcome; either web-based or desktop
 based.  Searching for 'invoice' on freshmeat gave me
 a lot of PHP applications to search from, but as I said
 earlier I'm not terribly happy with that - though at a
 pinch I'll use it.  (https + ip restrictions in place!)
  For what it is worth I'm running Debian Etch/Sid.
Steve
-- 
Debian GNU/Linux System Administration
http://www.debian-administration.org/