My Own Web-site

I know that if I upgrade my membership, I can have my own web-site together with fineartamerica-site.

Can I select Templates???
I already have my own website web-site, with an slide-show as home page.

Can I have a template with an slide-show??

Can I keep the same web-site name (URL)???

How the transition works when I create a new web-site with mi old web-site, if I want to have the same URL name??