is there any mods out there that do this?

sry if i'm not clear, i have no clue how Olivion works but i'm guessing i'm talking about havock?!?!?

There are some but they are kind of buggy example:If you used a mod that allowed you to move candles than strange lightning errors would happen after a while of holding it.

i mean like: u stab some one and they go flying, not just fall down

http://www.tesnexus.com/downloads/file.php?id=18308&navtag=file/images.php?id=18308&tab=3

There are more realistic approaches, but that's not what you're aiming for ,right?:)

correct