SAStk (Slackware Administrators Security tool kit) aims to provide a set of tools and utilities to install and maintain a reasonable level of security for the Slackware GNU/Linux distribution. At the same time, it should ease administration with a new centralized initialization setup and background information on what the daemons do.
> How much space is needed for slackware?
> I want to install it on my Asus EEE PC
> (only 4 gb harddrive)
Typically around 6GB for a full install but you can skinny that down easily by just installing only what you need.
If you look at the Slackware-HOWTO you'll see a section "3. Slackware Space Requirements" that has approximate space required for each set.