Handling custom taxonomies

I am redesigning my website and in the process I am also streamlining the way to navigate the content. Currently, my content is divided in default WP categories by content type and topics like this:

-Reviews
–Topic1
–Topic2
–Topic3
-News

And that’s all. News dont have any further hirarchy and that makes it quite hard for users to find related content.

The solution I’ve thought involves use of WP’s Custom Taxonomy feature. According to my plan, i’ll be a making a new set of categories. The current ones will be named as ‘Content Type’ and the new ones will be ‘Topics’.

Author will have to select two categories with every post from these two sets:

Content Type:
-News
-Review

Topic:
-Topic1
-Topic2
-Topic3

With that issue solved, now I need something for users to navigate the content. As I am using Genesis, i’ll make use of its two menus in header. One will show links different content types along with home and other usual buttons. While the secondary menu will show the topics.

What I want help is with what happens when someone clicks those links. For content type links, i plan to use simple list of posts.

But for topics, I want something advanced. I want a page which shows Topic name on top along with tabs for different content types filed under that topics. Something like this: http://www.engadget.com/topics/cellphones/

Can you guys give me some pointers that how can I achieve this?

Thanks!