I like the new scrolling in osx lion. my brother hates it. If you want to turn osx lion scrolling back to normal like snow leopard then:

Turn osx lion scrolling back to normal like snow leopard

  • system preferences > trackpad > scroll & zoom
  • untick ‘scroll direction: natural’

you are done.

Reversed trackpad, Regular mouse

I use the reversed scrolling setting on my trackpad on my laptop, but I like the normal way on my mouse, to do this, then you can install ‘scroll reverser

Sources: Apple Support