Well, they accept all credit cards and also paypal. They also claim to give a 12 month warranty on all of the electronics. They have been on the web since 2004. They only ship to a verifyed address also.
Take a look at their 'Help/FAQ' page it is quite extensive and can answer just about any question you might have about how they do business..
I didn't find anything about them on any of the scam alert sites, which is a good sign. If you buy just be sure to use a credit card or paypal to cover your money...