I've recently invested in an A3 light pad made by Huion, and I couldn't be more happier with it. I've been doing some very rough animated frames, using normal A4 cartridge paper and HB pencils. I don't have tripod for the camera as my dog chewed it up, so I had to prop the camera on a box and photograph the frames up against the wall. So they are very short and messy clips of animation. Still it's good practice.