FOG Rulebook & Late Medieval Army List Book
Still I've gotten a lot of use out of them, including a great weekend tournament last month NICON 2008. Managed four games over the two days - each 4 hours long. Lost 2 against Late Imperial Romans and War of the Roses English, drew 1 against Medieval Germans and won 1 against Carthaginians. Another set of army books comes out soon the Wolves of the Sea one looks good - Vikings and Dark Age English.