What frame rate should I use for a picture montage?

Set the frame rate to match that of the distribution medium's playback TV standard. This depends if if your montage will be for viewing in PAL, NTSC, or ATSC (HDTV). For example, I live in North America and I use 29.97 fps for the smoothest motion. You source material are digital still images (frame-based, not interlaced), so I don't see what difference it makes anyway.

I used 29.97. Looked good to me. Thanks. I was just not sure if it made a difference.