STEBA Using FontExplorer now for some weeks, and I'm really happy with it. Autoactivation maybe doens't work 100% all the time, but for accepting this you get a fast and intuitive font managing solution. The before mentioned problem with activating only compelte families is mildered by the speed of activation. Even if you activate some hundred fonts, it will only take some seconds. Say 1,2,3 and you're done.
I really can recommend FontExplorer. Especially to those who use Suitcase. You will be blown away by the speed of FontExplorer.
(Version 1.0.1)