I am having trouble with my computer. I am going to reformat my computer. I have all my app and songs and podcast In Itunes 9. I have my songs on a external hard drive so I am not to worry about them. I just what to back up my podcast? I have all of my app's on my touch so I am not worry about backing them up. I also what to know when I reinstall Itunes will I just see my Touch or do I have to copy files before I reformat my hard-drive?