I remember looking at the paper one morning (this was back when they had newspapers) and seeing that Nomar had 10 RBI the night before: two grannies and a two-run HR. That made him pretty legendary in my eyes. (And if I'm remembering that wrong, don't tell me because it's a beautiful memory.)
[Haha! Just found it. May 10, 1999.]
And I remember in the '99 postseason against Cleveland, one night he just terrorized the Guardians' pitching staff all game long. Finally near the end of the game they IBBed him and then Troy O'Leary killed the ball. Pick your poison.
Anyway, those are the moments that really draw you to a player.
EDIT: Oops, got that second memory entirely backwards. They had IBBed Nomar twice and O'Leary had hit HRs both times right afterward. So late in the game they finally pitched to Nomar (with 1st base open) and he cracked an RBI double. Thank you, intarwebs, for correcting my memory.