Upgrading to Waldorf without losing apt-get packages

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http://crunchbang.org – Hello,Through reading the forum I have determined that Waldorf seems to be a much more improved version than Statler, and I would like to upgrade. I'm thinking of doing a clean install, but worried about losing my data. I know that preserving my /home directory is trivial, but what about the programs that I've installed in /usr/local/bin and the like? If I do a clean install, how can I keep those packages? I'd rather not have to reinstall them all.Thanks.Edit: Found this, should I try it? (HowTos)