We're delighted to inform you that we now accept the Bitcoin payment method, in addition to PayPal, Google CheckOut, Visa, Mastercard, and American Express. Bitcoin is a decentralized P2P currency that enables instant payments. Use Bitcoin to purchase domains, web hosting, SSL certificates, or WhoisGuard on Namecheap.
https://www.namecheap.com/support/payment-options/bitcoin.aspx
Article on TheNextWeb: http://thenextweb.com/insider/2013/03/05/domain-registrar-and-web-host-namecheap-begins-accepting-payment-via-bitcoin/