In article <4a737g$11a@newsstand.cit.cornell.edu>, d_ruether@hotmail.com says...
>In article <4a72rr$11a@newsstand.cit.cornell.edu>, d_ruether@hotmail.com
>says...
>An addition to earlier post: it would be useful to bend up the ends of
>the mounting bar so that the two cameras could be mounted vertically -
>vertical stereo pairs are much easier to view than horizontal pairs.

Or bend the ends down - it would help with stability (and vertical
size) to mount the vertical cameras below the bar, especially if a pistol grip is also placed below the bar.
Hope this helps.