So, I bought my first apple product back in September, a 21.5 imac and I couldn't be more happier with it. I would like to upgrade to lion when it comes out, and I was wondering would I have to reinstall all the programs I have put on this computer such as CS5, guitar pro 6, office 2011, or will they remain untouched. Sorry if this questions been asked before but I couldn't find anything using the search.