Yes, which ever site you finalize the purchase through will be the site that you complete payment through.

Yes we have some items listed on both our website and ebay. Usually on ebay it will be auctioned off and what ever it goes for it will sell for. Then it will be deleted from our site. If it sells for a fixed price from our website it then will be deleted from ebay. Sometimes you can get a better deal by bidding on the item through ebay.