I've been playing around with a thing called Kuratur which is another of the news curation tools. It's fairly simple - you start with a template and you click and drag widgets onto it, then edit them to show the content that you want. You can choose various themes and layouts for the page, and it's straightforward enough to populate your magazine.
You can fiddle around with it for as long as you want, and you then preview it. You can add it to your blog if you use WordPress, but otherwise you can just give people the URL for it. Mine looks like this:
It's still in beta, so it's rough around the edges, but it's nice enough.