Anthony here from a software development company in Australia. We're looking into developing a mapping extension to our current product that will display a client's site and allow for certain actions to be done like selecting individual features etc. We wish to host the data using MSSQL server and the GIS data types that are supposedly going to be available with the release. Our major problem is getting the physical site into data form, preferably through an open source or other free solution. I have looked into raster-to-vector convertors with limited success. Is there a better option available?