I need sound effects for my movie.

As some of you know, I am making a movie and asked for assistance in another thread. Its OFFICIAL!! I am starting to shoot it on october 14th! So... i just need your help (becuase im oh so terrible with computers) to submit some sound effects.

I need 1) I knife whipping trough the air. Like someone just through it. (Kind of like in V for Vendetta)

2) I need that excatly but in slow motion.

3) There is alot of hitting in my movie. I need like i am hitting him with a chunk of metal and a wooden stick.

4) The sound of metal stabbing into someone

THANK YOU SO MUCH! Once oyu give it to me, i would appreciate it if you tell me how to save it. Thank you.

Cody