Hi All, to be honest I've discovered this is out of the realm of SharePoint, we just needed something generating SAML tokens with 2 attributes in the assertions, it was easier to code something up using this componentspace.com/Products/SAMLv20.aspx. Thanks everyone for your help.

What do you mean by "something needs to be written into the SQL-DB" - do you mean that you want to save something in SharePoint??