I've recently come into ownership of an MS-Access database (2007 accdb), which I want to be able to use in a GIS. I know a little bit about GIS (I've used QGIS and ArcGIS quite a bit) but very little about databases. There is currently no spatial data in it but I do have various shapefiles which I want to link it to and ideally merge all these files/databases into one spatial database.
If I had access to ArcMAP I'd probably just set up an ESRI Geodatabase, but that's not available. From what I've read PostGIS might be something I could use but as I say I know very little about databases beyond MS-Access.
Is there a user friendly system someone could point me in the direction of? It would need to be compatible with MapInfo 7 (don't ask!) or QGIS. Any help/advice would be much appreciated.