My group use 1/72 for quite a few systems , i'll list below the rules and the period we use
Fire and Fury- ACW
Fire and Fury - Sudan
Command and Colours - Ancients ,
Flames of War - WW2 , WW1
Memoir 44 - WW2
Warhammer Ancients - Ancients and Napoleonics ( oddly enough it works well with Naps )
Disposeable Heroes - WW2
This Very Ground - War of 1812
Some of the above use multiple basing which is great for 1/72 plastics.
Keep in mind 1/72 figures are just as good to use for historical gaming as thier 28mm cousins , sometimes better .
Hope this helps , cheers Tom
QUOTE(PlasmaDavid @ Mar 26 2011, 07:36 PM)

Since I'm doing my 1/72 scale diorama project and will have plenty of minis left over, is there any game system using such small minis I might look at?