Fafnir, can you talk to someone who knows and writes code who can help you with this? I advise that you do that, only b/c of your copyright issues. Technically, anything posted online can be TAKEN. I know this b/c of photography... if it's on Flickr, or WordPress, or any public site and can be clicked on and saved, it's simply gone. Not easy to chase down. If you can get someone who knows more about writing HTML or whatever, you'll be better off with that for your sensitive content. JMO. Of course you can always put watermarks all over your art.
As far as Etsy finds and other stuff (which I would love to see
)... I've used Blogger and Wordpress and think the latter has better designs, while Blogger is easier (more intuitive) to use. And yep, you can access your photos from Photobucket or Flickr for those.