Auctiva - Powerful solutions for eBay Sellers

I started out on Ebay selling personal stuff. Now I want to create a business. The questions I have are, do I create the business on Ebay or Auctiva or is it the same. Do I still need to get selling manager pro? Does Ebay still have advantages over Auctiva? I also ran accross a wholesaler named Sunrise Wholesale that will set you up with a store and domain name. Can I create a domain with them and Ebay, and can they be linked so people can go from one place to another? There are so many issues. Any imput would be thankful.

Auctiva is just a listing enhancement, you need to inform Ebay that you are a business (this is required by law)

You don't NEED selling manager pro, I don't use it,
Selling manager standard on the other hand is free, and I find very handy for sending out mass emails (thanking people for payments etc) or marking items as dispatched.

I don't understand the question re ebay having advantages over Auctiva?
Auctiva gives you a nifty scrolling gallery, free picture hosting, free templates, and more.

I am not sure how the domain names work i'm afraid, I haven't got that far yet

Thank you for your imput.There is a lot to take in and having people like you with some time in doing these things, helps a great deal. Thanks.