Can you paginate by Category?

Thanks to devnz’s help, my numerous testimonials (100+ over 2-3 years so far) are displaying perfectly and auto-paginating – so I’m looking at Categories to make things easier for visitors to my website.

Each Testimonial is assigned to a Year category (ie when it was received) and I’ve proved that editing the code [full-testimonials category=”xx”] and “pageSize: 100” means I can display all testimonials received in a given year, eg 2010.

What would be the best way of letting visitors choose the category of interest? Eg either a drop down box listing available categories?

Does anyone have any ideas about this?

Thanks in advance.

J