Pretty Reports is a nice freeware reporter. In the designer you design reports, define variables, define datasets which connect to databases via OLE DB, txt files, Excel, VistaDB, SQLite, Interbase, Firebird, MySQL, BDE and you can even design input mask that users will use.

You can use all sorts of controls on the report from bands, labels, DB labels, expression labels, to picture, richbox, memobox and even graph. Report knows pascal script as well. Users print reports via Pretty Reports Viewer. In the viewer users can only insert values for variables and preview/print report. You can also generate pdf reports via command line.