@gregorio5: Sorry but the three sites you listed are too dodgy. First f all you found them on Alibaba.com - this site is famous for the rampant scams buyers incur when buying from suppliers there.
Also all three sites offered inadequate or no contact details at all - Ideally a supplier should provide you with a landline phone number, physical address and a domain based email add.
The first two sites claimed to accept PayPal but when I tried to buy one of their products there was no link to PayPal. This is false advertisement and is not done by true and trustworthy suppliers.
These are Chinese suppliers but they offer various brand name items - Remember rule no.1 when dealing with Chinese suppliers never ever buy anything branded, the likelihood of the product being fake is 9 out of 10.
Here's an expose we did about Alibaba.com, you may want to read it:
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Hope this helps! Cheers :)