We've been working to upgrade our website and store front over the last little while, this includes offering new options for payment. Before our new site launched, we were only able to accept payment through Paypal. Now, we're able to accept payment through Paypal, with credit cards (direct through the shop), and with Bitcoin (BTC)!
Bitcoin is an exciting new digital currency gaining notoriety worldwide for its ease of use, extremely low transaction fees, and public backing. You can read more about it here.
UPDATED (1 Dec 2013): We have now added an option to pay using BTC during checkout, using the BitPay service.