If you end up going with raw text, but semi-organized, you might look into something like ELIE. I've never, ever used it, but stumbled upon it today in a differ

If you end up going with raw text, but semi-organized, you might look into something like ELIE. I've never, ever used it, but stumbled upon it today in a different context: http://www.aidanf.net/software/elie-an-adaptive-information-extraction-system http://www.aidanf.net/software/elie-an-adaptive-information-...