I'm suprised nobody has the same emotional moment as me.

For me, it was the Naruto vs. transformed Gaara fight. (chapters 133-135) Beginning with when Naruto realizes "Only to him, I don't want to lose if I die!" Then Sasuke catches Naruto after his clones have been repelled and urges Naruto to take Sakura and flee while he vows. "Never again. I have already lost everything once before, I don't ever want to watch those dear to me die before my eyes again!"
Finally, Naruto realizes, only when you protect those dear to you, only then you're truly strong!

"I'll protect them no matter what! [...several pages..] Kyuubi, please give me enough to protect them!"

I swear I almost cried, Naruto and Sasuke both realized what was so important and were truly willing to sacrifice everything to protect their friends. I can't WAIT until this is animated, though it's going to be a while. I'm going to bawl.