if you have answered 'yes' to the above questions, then come over here, friend and all will be revealed...
syncTogether is a fantastic program that uses apple syncservices (same technology that powers .mac) to sync 2 or more computers. it does everything that .mac sync does except keychain syncing (this is due to an apple bug apparently). you set up one machine as the master and one as the slave (in a 2 computer set up) and then you're off. it works and it works well. significantly faster than syncing via apple as it all happens on your local network.
so there you have it, friends. no more .mac for me. bwahahahahha