Binding M- / M- in Emacs 23.1.1

Question

I\'m trying to put in a feature that I miss from Eclipse, where Alt+[Up/Down] transposes the lines up or down, but can not for the life of m

Answer 1

(global-set-key [M-up] 'beginning-of-buffer)
(global-set-key [M-down] 'end-of-buffer)

In my OSX, I have this definition to perform Alt-up/down to jump to top/bottom of buffer.