In article <4losfq$dnu@decaxp.HARVARD.EDU>, kkobayas@scws45.HARVARD.EDU says... [..]

>What I want to do is to connect an N90s and
>an N8008s together so they can be fired simultaneously, either
>from the same cable release or from one camera. What will be the
>cheapest solution for this? I don't have a cable release for
>either camera yet, though I plan to get an MC-12A or possibly
>the MR-3 adaptor soon.

Probably two MR-3's and a double cable release would be the cheapest/easiest way to do this (unless the N90s has a standard
cable input, in which case, you need only one MR-3).
Hope This Helps