Calling out suggestions for animated videos for starters and non-designers?

Hi Hunters, Please help me identify tools for creating some animated / motion videos to showcase short demos of my software application. Visit www.qinaps.com, this is where i want to add introductory videos. While screen-grabs are the real deal, they are not a good way for catching eye-balls and creating initial awareness and traction. So i want to create some simple videos explaining the VP of the product and then have those demos ones. Recommend away !! Cheers Nilova