And the good bits either side of Prog 600...
Zenith Phase 1, Progs 537-550.
ABC Warriors, The Black Hole, Progs 555-581.
Bad Company, The Krool Heart, Progs 576-585.
Zenith Phase 2, Progs 589-606.
Zenith Phase 3, Progs 626-634, 650-670.
Slaine, The Horned God, 626-635.
(Mostly Zenith, really)
Edit: on reflection, I agree that Prog 671 really did mark the end of the (first) Golden Age. Rogue Trooper, War Machine, Part 2, Armoured Gideon and Harlem Heroes. 24th March 1990. Thirteen years and 670 Progs is not a bad winning streak.