From author's site:

authorPOINT Lite is a free PowerPoint to Flash converter that quickly and easily converts PowerPoint presentations to Flash. authorPOINT Lite is easy-to-use, and provides fast, accurate and high quality conversions of PowerPoint (.ppt and .pps) to Flash (.swf). Once converted, your Flash presentation has the same impact as your PowerPoint presentation retaining its effects, sound, animation, and rehearse timings etc; plus you have all the benefits of a Flash file like reduced size, secure content, and easy distribution on the Web.

-Batch conversion where you can convert multiple PPT to SWF files
-Supports animations, sound on animations, animated GIFs, narrations, and rehearse timings
-Options to select preferred quality- and conversion settings for the output

From author's site:

ZionWorx is a powerful, professional yet easy-to-use song display program, designed to meet the needs of churches that want to use multimedia in worship. Now includes an integrated bible feature and also the facility to connect to www.BibleGateway.com online bibles.

Many churches today, from all denominations, are experiencing the benefits that technology can bring when it is applied to worship in a sensitive and unobtrusive way - and this is where ZionWorx might be able to help you.

Unlike similar commercial worship software, ZionWorx is absolutely free. You can even download the latest version right now and check it out for yourself!

Project lyrics in two different languages at the same time. Play Audio File or Video Background and Live Feed from an attached Camcorder along with the lyrics. Alternatively you can use Easislide's slide backgrounds, gradients or your own images.

Easislides is packed full of features, more than what you may find in a lot of paid worship projection software. Visit the site for all the features!