Can ArcGIS Desktop (or any of its native extensions) allow me to create DEMs from stereo pairs (acquired by satellite, Geoeye 1)?
If the answer is a clear no, brownie points will go to an answer that proposes a viable alternative using OpenSource.
if you are searching Automatic DEM extraction module, you should check out PCI Geomatics (there is video here) or ENVI DEM Extraction Module (which i have used before from stereo - and a little bit hard to remember...)
and if you want free but not open source (FbNOS) project, you can check out HyperCube here. it has lots of functions for image and data. you can find more information form docs which have published on their site.
i hope it helps you...