It's very cheap to set up a home system and very reasonable to set up an
outdoor system.  You can download the program for free by using Badger.
Then all you need is a $35 license for private use or a $140 license for outdoor
use.  But hey, you get 30 days anyway to play with it.  Plus, even a timed out
demo still plays the sounds, and also comes alive every December to help
you celebrate, so you may want to burn a CD of the install files and keep it with
the Christmas lights & tinsel.

Setting up a system is pretty simple. Here's a typical way to go:

1) Download and install the demo on your "good" machine.
    Make sure you know where you put the original download files.

2) Get a working Windows machine that you'll want to use
    for ChurchBells.  (For now, use XP or older.)

3) Go here and install ChurchBells.

4) Start up the ChurchBells computer and install from the CD or directory.
    When you're done installing it, run it to finish the install. On a slower
    computer (like a 486/100) this will take hours to complete, so just leave it
    running and don't wait up for it.

5) Go into the Control Panel on the ChurchBells computer and turn off the
    sound for Windows Start. (Click on Start, Settings, Control Panel, Sounds,
    Windows Start, and set it to "none".)

6) Run ChurchBells and Get the demo license number from the computer.
    Use that number to order the full license. When you have the full license
    number you can enter it and turn your demo installation into a full one.
    To do all that stuff you can click on "Register". 

7) Look over the default schedule and start making changes. The first
    thing you'll most likely want to to is to provide for silence during church
    services, choir practices and bedtimes. Note that only the Organization
    level license allows you to save custom schedules.

8) If you want to, you can add your own songs, or replace the stock tunes
    with the more elaborate stereo versions from InspiredCode's Harmonious
    Bells CD.  To find out about doing this, click here.

9) You may want to have ChurchBells turn on and off the power amplifier
     when it plays chimes and musical selections.  The ability to Remotely
     Control an Audio Power Amplifier requires the use of a solid state relay
     such as Omron's G3NA-210B-DC5-24, which is available from
     Digikey.com as their part number Z918-ND (for about $18).  When the
     power amp is supposed to be on, all 8 bits of the LPT port go active,
     and one could pick any bit and feed that 5 volts into the input of the
     solid state relay.  The output of the relay can handle up to 10 amps of
     120vac.  It would be advisable to mount the SSR (solid state relay) in a
     UL listed enclosure and to fuse both input and output circuits. A Bell Box
     might be ideal for this, as it could easily accomodate an AC outlet plate
     that is made to fit into it.  The fuse holes could be made using the Cobra
     unibit drill bit.  I would advise to have an electrician set this up.  In fact,
     certain insurance carriers may insist that all electrical work be performed
     by licensed electricians who are familiar with U.L. specifications.
    
That being said, here is one product that may fit the bill:

You may want to go here:
http://www.electronickits.com/kit/complete/elec/ck1601.htm

and check out:
CK1601A - Parallel Port Relay Board (Assembled & Tested In The USA!) - $49.95

DISCLAIMER:  The methods shown on this page are for descriptive purposes,
to clarify the significance of the functionality of the ChurchBells software.  I
am NOT actually advising you to do anything, and will not be held responsible
for the outcome of your own actions.  If you decide to perform or contract out
any work or make any connections, you do so solely at your own risk.