Canvas 11 (ACDSEE)

Maybe more than other drawing programs (such as CorelDraw, Freehand, Illustrator, or Photoshop), Canvas has taken the route of the "presentation-software". Useful for graphically rich presentations.

Elements Studio and Elements Designer 3.5 (Norpath)

This program seems to be a "Swiss Army Knife" of multimedia and presentation development. It claims to excel in four major areas (from the site):

1. •Learning and Training Solutions: interactive computer-based training applications for corporate and educational use.
   

2. •Multimedia Solutions: interactive presentations, demonstrations, and promotional materials.
   

3. •Interactive Information Solutions: catalogs, technical manuals, courseware, simulations, surveys, user guides, and reference materials.
   

4. •Interactive Kiosk Solutions: merchandising, informational, tradeshows, science & technology.
   

Keynote 4.0.3 (Apple)

Apple’s answer for PowerPoint; part of iWork ‘08. Keynote allows exporting of presentations in PowerPoint, Flash, QuickTime,  PDF, Images (TIFF, PNG or JPEG), iDVD and HTML.

A few Keynote sites:

1. ‣KeynoteHQ.com
   

2. ‣Keynote Theme Park
   

3. ‣KeynoteUser.com
   

4. ‣Keynote Pro
   

KPresenter 1.6.3 (the KOffice Project)

See the site fro more details. Important note: It is a Unix application, running in X11.

NeoOffice 2.2.4 (Planamesa Software; Patrick Luby & Edward Peterlin)

Based on OpenOffice 2.2. Now with an Aqua interface!

OpenOffice IMPRESS 2.4 (OpenOffice.org)

If you are looking for a Microsoft Office replacement, this may be your only option after NeoOffice.

PowerPoint 2008 12.0.1 (Microsoft)

PowerPoint is very much the standard for presentation software. Unless you need very complex and media-rich presentations requiring Macromedia Director or Macromedia Authorware, PowerPoint is the easiest way to create a solid, impressive presentation.

ThinkFree Show 3.2 (ThinkFree)

Java-based office suite for Mac OS X, part of ThinkFree Office. Compatible with Microsoft Office. ThinkFree's performance will greatly depend on how well your computer and system version handle Java applications. Thinkfree is very much a "bare minimum" version of Word and compatibility is not 100%. Some more complex formatting is often lost in the translation of files. Still, the price is unbeatable.

Also worth mentioning (for more specific delivery needs):

1. ‣Authorware 7.0 (ADOBE)
   

2. ‣Director 11.0 (ADOBE); script: Lingo
   

3. ‣Flash CS3 and Professional CS3 (ADOBE); script: ActionScript
   

4. ‣iShell 4.5 (TribalMedia)