The pinnacle of old technic: the Space Shuttle 8480. This set is one of the highest quality old ones I ever got my hands on, and complete as complete can be. :
LEGO 8480 Space Shuttle | Brickset
LEGO 8480 Space Shuttle - Sometimes declaring your passion for LEGO to your work colleagues pays off review | Brickset
LEGO 8480 Space Shuttle Set Parts Inventory and Instructions - LEGO Reference Guide