I love the scene where Dukat discovers that Sisko left the baseball behind. And then the final shot of the Federation fleet, of course. Great stuff.
Things like the baseball being left behind were great wee scenes that just helped make the whole thing seem big, yet very personal to all the cast we got to know over the time.
Its up there with the best of the best of Star Trek, its a classic that just makes you scream out for more, loved every second of it.
From watching through again recently, its the beginning of some great ST TV, the final 3 seasons of DS9 were brilliant, and had me glued to it the whole way.