[Freegis-list] Cost Effective WebGIS

[Satyajit]

HI folks,
       With the increasing sharing of GIS data on net, our institution
is also taking a plunge in it. We have some GIS data in ESRI shapefile
format. The requirement is to make this data available to users through
net. Since this is not for any commercial purpose we won't be able to
make use of the costly softwares like ArcIMS or Autodesk Mapguide for
this project. I am looking for a cost effective solution to acheive
this. I understand that I'll have to use an application server, a
databse server and a spatial server. Can anyone please suggest me a
right combination which is cost effective. I certainly don't expect a
large of number of hits on my site but it should be reliable. Will any
opensource solution suffice my requirement ? There are so many
opensource/free solutions mentioned on the site that, its confusing as
which one I should consider. 
Thanks in anticipation

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