Why you have to pay for such a utilitie when you can do a fine job with the derfag.exe that comes with windows?And if you like to defrag the pagefile or the registry hives there is this freeware defrag utilitie from sysinternals.
http://www.sysinternals.com/ntw2k/fr...gedefrag.shtml
http://www.sysinternals.com/files/pagedfrg.zip
I think is enough at least for me.