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Go for the cheapest at http://home.mcafee.com/Store/Package.aspx?pkgid=276 as they are all the same, just that this one is on sale I guess.
It doesn't matter 2009/2010 label which is only packaging differences as they both will upgrade to the not-yet-released 2010 product when available, and will continue to do so provided your subscription is valid.
You will have to ensure that the Enterprise product is well and truly removed before attempting to install the home version. Remove in the normal fashion and make sure by checking this: http://community.mcafee.com/message/21028#21028
The product includes defrag and Quickclean Lite tools.
I don't think you need anything more from what you have described.