I am looking for software for worship song presentation for churches.
 - It must run on the Windows platform
 - It must support dual monitors ( preview/production )
 - Software cost should be less than $50 preferrably free (I'm
praying that some GPL'er has written one)
 - Lyrics can be entered manually
 - I'd prefer that it have a lot of intelligence built into the
design, very usable (ie, little training req'd: clients are very often
non-technical)
 - I'd prefer mature/stable software.  Crashes during worship are
distracting, so beta software is not a good thing (pre 1.0).

Here's a good ($400) example of such software:
http://www.easyworship.com/

I've also downloaded PowerWorship 3.0 which exports to Powerpoint, and
I'm assuming there is a better solution than Powerpoint.

I downloaded Sing and Read but can't remember where I stored it on my
computer.  Oh well.

You may want to look for generic/business presentation software and
not specifically church software.  If you need to, sign on to a
Christian or business forum somewhere and post Q's.

I'm looking for an answer that provides:
 - The name of the program(s) if it exists and a link
 - a brief list of what features it has
 - cost

If no suitable ones exist, it's worth knowing that as well, and I
thank you for the effort.  Research this when you have time; it's not
urgent.

Hi! Thanks for the question.

I have found the following low cost and free software that matches
your requirements.

ZionWorx (Free Download)
http://www.zionworx.ukf.net/features.html 
http://www.zionworx.ukf.net/register.html
 
Project-IT (Free for non Profit Use)
http://www.cbtnz.com/pages/worshiptool.html

Worship Assistant  (Only $55 close enough to your limit)
http://www.churchassist.com/order.html 

Our next links meanwhile are also totally free versions but they are
in Version 1 modes but since they are free, you might still be
interested in them.

Sing And Read (I searched for this so you can enjoy it again)
http://www.singandread.com/ 

Lyrics
http://www.dgssoftware.com/products/lyrics.asp 

You might also be interested in the high-end products that provide
demo versions of their software.

Worship Him (Demo Version)
http://www.worship-him.com/demo.htm 

SongShow Plus
http://www.songshow.com/songshow02/download/song_show_free_download.htm

SundayPlus
http://www.sundayplus.com/
http://www.sundayplus.com/demo_req.html

EasyWorship
http://www.easyworship.com/

Search terms used:        
church software "dual monitors"
church music presentation software 
       
I hope these links would help you in your research. Before rating this
answer, please ask for a clarification if you have a question or if
you would need further information.
       
Thanks for visiting us.        
       
Regards,        
Easterangel-ga        
Google Answers Researcher

Very convenient to have my web research done for me.  Thanks!

http://google.com

You can try 

http://mediashout.com

also.  And checkout:

http://worshiploops.com

for video backgrounds and loops to use with these kinds of software.