You can register your own domain name through www.GoDaddy.com, just be sure to watch out for all the advertisements on your way to the checkout page. Look for "No Thanks, Continue to Checkout" on the bottom of the page if your in doubt. You'll want to buy your domain name for at least 5 years as well, search engines will look up a domain names expiry date and rank it accordingly. The cost for 5 years is around $50.00.