How to find lisp code for standard emacs functions? How to find functions bound to keys?

[exits funnel]

Hello,

I've been using emacs for about a month and love it. 
Now, I've trying to learn a bit of lisp and I have two
quick questions:

1.  How can I display the code associated with, for
instance, goto-line?  I think studying this code would
help me quite a bit.

2.  How can I find the name of the function associated
with a given key-sequence?  For example, I use C-w all
the time, but I can't figure out what the name of the
function is.

Thanks in adavnce for help with this simple issues.

-exits

__________________________________
Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo.
http://search.yahoo.com