MapGuide Opensource version is another choice.
http://mapguide.osgeo.org/
You can chose MapGuide enterprise edition.
http://usa.autodesk.com/adsk/servlet/index?id=6546938&siteID=123112
--
-------------------------------------------
Yasuharu Yamada
Chief Researcher,
Research Team for Disaster Reduction,
NIRE, NARO Japan
yamaday@affrc.go.jp
http://nkk.naro.affrc.go.jp/eng/about/org/dept_rural_techno/t_disaster/index.html