I recently celebrated a major mill milestone birthday. One of the gifts I received was a selection of rules and supplements for the 'Songs of' series.
Flying Lead will be a useful set of rules for any firearm heavy period, particularly for 20th century games. Songs of Arthur & Merlin will allow me to make use of my 28mm dark age figures.
The other supplements will be used in our current campaign.
All in all a useful aquisitions.