Check out:<br><br><br>They sell replacement key caps, just like you need. Several color and font choices, defintiely a way to personalize your iBook. They won't sell you individual key caps, but you can buy a "block" of them (in your case, all the letter keys) for $29.<br><br>If your iBook is under warranty, Apple should send you a replacement keyboard. The Enter key on my iBook (ice) broke off from normal wear and tear and they replaced it.<br><br>