From the Get Slack! dept.:
...Slackware 13.0 brings many updates and enhancements, among which you'll find two of the most advanced desktop environments available today: Xfce 4.6.1, a fast and lightweight but visually appealing and easy to use desktop environment, and KDE 4.2.4, a recent stable release of the new 4.2.x series of the award-winning K Desktop Environment. We continue to make use of HAL (Hardware Abstraction Layer) which allows the system administrator to grant use of various hardware devices according to users' group membership so that they will be able to use items such as USB flash sticks, USB cameras that appear like USB storage, portable hard drives, CD and DVD media, MP3 players, and more, all without requiring sudo, the mount or umount command. Just plug and play. Properly set up, Slackware's desktop should be suitable for any level of Linux experience.

Slackware uses the 2.6.29.6 kernel bringing you advanced performance features such as journaling filesystems, SCSI and ATA RAID volume support, SATA support, Software RAID, LVM (the Logical Volume Manager), and encrypted filesystems. Kernel support for X DRI (the Direct Rendering
Interface) brings high-speed hardware accelerated 3D graphics to Linux.

slackware.com