Animated video of how my website works

Hi, I need a professional advertising video, completely with visuals and animations. This video will not include real video footage shot with a camera. It will rather include a lot of animations and visual effects. The length is about 2 minutes. The video will describe how my website will work. Video will be similar of the groupon.com-how it works video. spoken voice is not needed Professional video production, editing and animation skills are required. Please send me links to your video production portfolio so I can see if you are capable of helping me with this project. If I'm very satisfied with the quality after completion of this project, I will be interested to work with you on many projects in the future. I need someone who is very passionate about video production and loves the challenges that comes with it as much as you enjoy working with video. Regards, Reiko