I'm looking to set up a FOSS web GIS to allow sharing of large data files. From online discussions I gather this can be done using a variety of software combinations, e.g.
PostGIS + MapServer + OpenLayers
PostGIS + QGIS Desktop + QGIS Server + QGIS Client.
Could people experienced in this area please detail any advantages and/or disadvantages that might be associated with these two options?
Are there any problems setting up either of these two systems on a 64-bit machine?
The end product webGIS would ideally give differential access via user name and password, with different selections of data available to different users.
Any advice appreciated.