Animated explainer video

Looking for a service provider to create an animated explainer videos in 2D (not whiteboard). Looking for a service provider who is reliable with great communications skills. The animation should be simple, clear, creative, and fun (~1 min). You deliver the story boards, and once they are approved the final product within 2 weeks in an FLV / MP4 / AVI or other net friendly format. Please specify if you can do a voiceover One round of revisions will be required.