re: (North) American games...

Hmmm...a rather obtuse point of view:
Fire & Fury
They Died For Glory
Legacy of Glory
The Sword & The Flame
Tactica
Armati
Drums of War
Desperado
Johnny Reb
Washington's Wars
Any of the Canadian Wargaming Products(French & Indian, War of 1812 & 
Medieval)...all decent rules sets with original  ideas without scads of 
modules to waste money on...I sure some of the died in wool SciFi types 
could provide some some SciFi rules...and who are those GW people
anyway?  
Lost Americans?