Ok I'm changing this, it just got simpler. Yes- and I have 10.1 advanced, and enterprise server- with spatial analyst, 3d and network analyst.
don't care about topography
They pass us a location, that will be a point from one of a series of preexisting layers (which may include lat long or mailing address, but not generally. Generally it will be a preexisting point for a point layer.
We need to measure a straight line from that - selected point - to a bunch of points in 1 other layer.
That's it. - looking for an output of a table of distances and point information.