Hi, I am considering getting an Ipod Touch and I have some videos in my iTunes library that are 720x400, 720x300, and 640x480. Will these work on an Ipod Touch? I can't decide if I want to wait until they upgrade the memory to at least 32GB. I have been using my 15GB 3G for a long time and really love the touch widescreen and internet capabilities but with all of the movies and tv shows I have now, I do not know if I want to spend $400 for 16GB or wait. Thanks.