Keypad I lost the S key on my notebook keypad. Can I replace the entire keypad?

You can most definitely replace the whole keyboard.

<a rel='nofollow' href="http://www.laptoprepairco.com/itemdetails/itemdetails.asp?ref=1345&category=keyboards"> http://www.laptoprepairco.com/itemdetails/itemdetails.asp?ref=1345&category=keyboards</a>

If you don't want to spend upwards of $100 dollars just for that keyboard, though, I would suggest going on ebay and checking out the selection of keyboards and other things they have. It is completely possible to buy a 99 cent keyboard and replace the key with that. Then, you will also have backups for any future mishaps.

P.S. DON'T FORGET TO VOTE