I always found Theoden's and Aragorn's battlefield speeches on a par with both "Once more.." and "St. Crispin's Day" from Henry V.
As for the other thing, Legolas did it cooler, and didn't need a winch, a lightsaber and a grenade to do it :)
*No further information! Too soon for spoilers...
I still get choked up by Theoden's speech, but was able to manage a very vocal "oorah" after Aragorn's. Didn't have a sword to bang against a shield.
DEATH!!!... DEATH!!!... DEATH!!!
*sniff*... just beautiful...