Software for free!

Audacity : Sound-editing software that you can use to record and edit your podcast.

Windows Movie Maker : Video-editing software which is great for making short videos of about 30 minutes or less. It can be used for longer presentations but make sure you have plenty of RAM memory-at least 1GB or more.

Windows Photo Story : Great for making photo slide shows. It allows you to integrate transitions and audio files.

30-day Free Trials

Adobe Photoshop Elements : One of the best image editing pieces of software. It requires some time to learn most of the major functions but well worth the time.

Music

Freeplaymusic : A wonderful selection of audio files with clips of about 10 seconds to full-length songs. Free for educational purposes but there is a charge for commercial use.