Are these digital video cameras any good, I've only owned Digital cameras and Camcorders in the past, no Digital video cameras, so I'm a newbie buying one? I've found the 5.5 MP one for $130 (US). I wish I knew what quality of a video clip I could fit on a 512 mb SD card. I'm planning on using it in disney world to take some lenthy movie clips of our vacation this summer. I can't find any reviews on any of them. I beleive they are made in Australia and branded under multiple brand names like Panasonic and such so I'm figuring somebody here might know about it.