Animated Video Presentation - Developer / Producer

We are a global IT solution provider and within our UK operation we planning a series of Marketing campaigns for the UK market. Each one will be supported by a website and on each site I would like a supporting video. I am therefore looking for someone who can put together animated video presentations of around 3 minute duration.

This will be an ongoing process stretching over many months as we initiate each campaign. Therefore I am seeking budgetary quotes from people with the correct skill set on a job by job basis. I would therefore prefer to use a single contractor for all. So If this is something of interest please get in touch and I can talk you through our requirements in more detail.

Please send me links/samples of your work in your response.