transitions in rev?

[Joe Lewis Wilkins]

While we're talking about visual effects and PP presentations, I'm  
going to have to put together one shortly and rather than use either  
PP or the Mac equivalent, which I don't have right now, I'm thinking  
about the ease with which I can do a Rev stack/stand alone. My  
question is whether, if you've got a lot of photos, it makes more  
sense to create a card for each one, or just change the image being  
displayed on a few different cards using external jpg files. I'm  
inclined to do the former, but I have a hunch the later might be  
easier to manage. Downsides to doing either? I suspect the cards will  
probably be faster in execution. Maybe a lot faster, but...

TIA,

Joe Wilkins