Microsoft Powerpoint and Corel Presentations are both excellent, with advantages and disadvantages to each. Their recent releases have made significant advances in navigation tools, but neither offers tight control over timing. For more-sophisticated presentations something like Astound or Corel Click and Create may be needed. But the days have passed when a production costing tens of thousands of dollars was the only option for a sophisticated electronic brochure or multimedia presentation. Never give a multimedia presentation that you cannot also give as a speech.
Technology is mischievous.