Rolling Testimonial window on web page

Hi,

I need to put a rolling testimonials window on each page of my website. In other words - when the page is visited the visitor sees a a window in the right column. in the window is moving text - rolling through my testimonials.

I hope this makes sense.

Any thoughts on the best way of doing this is appreciated

Can you please give me a quote on this and the amount of time it is likely to take?

thank you