animation needed can be flash, silverlight etc

We are looking for someone or company to make us an animation. ONLY respond if you have a portfolio of prior work. We have a product we manufacture and want someone to create the animation that will be used on the website and trade shows, the entire content and general idea of the animation has been made already. So we are looking for someone who can the ideas written on paper and put the together into something very appealing. We will only use people who have a portfolio, quality and time of completion are most important. I am located in the US and my associate is in Hong Kong, so one of us can always be available to provide feedback. respond with portfolio and any questions and lets get this done.