Lego
Action Man (original not the new 'eco warrior')
Airfix 1/72 Soldiers and their various 'Action Sets' I had the Roman Mile Fort, French Foreigh Legion fort, Coastal Defence fort, Gun Emplacement, Jungle Outpost, Pontoon Bridge and Forward Command post.
To go with them I had Romans, Ancient Britains, French Foreign Legion, Beduin Warriors on Camels and all manner of WW2 figures.
The great thing is my 8 year old hasexactly the same sets, they are still in production
My Space 1999 Eagles were good as well.