I second that. What I also suggest is scanning your Mac for old and outdated software.
I recently removed iStat Menus 2.0, together with AppFresh and some other shareware crap which used to start up with the computer. Check startup items for your User and root and remove any .plist file which does not belong in there (Check the Internet to be sure). I also use the Console to get Error Messages from App leftovers.
My Mac runs OSX Lion a lot smoother since my manual cleaning, so in my opinion there is not much need for tools.