Animation / Video presentation

I want to turn a series of screenshots into a presentation video or animation to showcase our new product to rental car and motorhome businesses. The product is an InCar tablet that delivers multiple functionality to the user including GPS navigation, Audio triggers, Point of interest listings, Wifi hotspot. I need someone with great design and marketing skills to create a presentation for me. I will provide an outline of what I require and then need someone to make it look professional. I dont think all the screenshots need to be used, its more about getting the point across on the key functions od the device and what the benefits are for the rental car and motorhome businesses. So its about selling the sizzle of the product and then showing how the product works.