The Slackware-based Absolute Linux 13.1.2 was release yesterday. Absolute Linux features the IceWM window manager which is very fast and lightweight.

INSTALLING Slackware is a Linux rite of passage. It is the computing equivalent of wandering off alone into the bush for a month armed with nothing more than a pointy stick and grim determination.
That is to say, it is quite a testing experience that is not to be entered into lightly. It is also something you only want to have to do once, if at all possible.