AAAAAArgh!!!
DON'T USE ACROBAT FOR SLIDE SHOWS!!!!!!!!!!!!!!!!!!!!!!!!!!
Too much RAM needed - some things don't project properly - like animation bits and it can be slow with oversized images.
Invest in Powerpoint or Keynote for Mac.
Use the transition tools to make interesting "animated" slides.
Powerpoint has an advantage currently in that it can make a timed slide show that Keynote cannot.
The easy way to get images into Powerpoint or Keynote is to cut and paste using a screen capture tool like SnapzPro or whatever....
Set the capture size to equal your presentation size and forge onward, copying and pasting from ArchiCAD into Powerpoint as you develop your lecture. You can thro them out later if too many...
Concern for resolution is approriate - I spend a lot of time using 800x600 projectors, so am careful to use large type. Remember that you have an unlimited number of slides, so that you can easily take screenshots of zoomed-in bits as you speak to clearly illustrate the details of your plan as you go. This is better than using a pointer.
Architects always put too much on the screen at once - think of it as telling a story. You will achieve better understanding the more linear you make the thought process of your audience. Lots of slide changes with few pieces of info is better than one overly-detailed plan with a droning voice and a laser pointer. Ask me, I know.
I'll be addressing this very topic at ACUE in March. don't miss it. The EARLY BIRD SPECIAL is going to expire soon.
Dwight Atkinson