Job Description

I need a GIS (web) tool for research and editing of information, supported images in the database SQL SERVER (Raster) and also features on the database.
The goal is to deliver a web site that shows customized map information and large raster images (above 50Gb raster size) using any web map service that works with SQL SERVER, with low cost.
The map information are features produced using ArcGis solutions and are stored in ArcSDE. It can be easily transfered to SQL SERVER SPATIAL or any else spatial database. The problem we are having is to find a solution that can deal with large raster images.

Please DO NOT apply if you dont have previous experience on that, and ONLY apply if you can show a working case of web map WITH large raster images on database.