My Linux box uses a fairly sophisticated array of software on it. The first level is the distribution. I use gentoo linux, a distribution aimed at fairly experienced users. It has no graphical installation or configuration tools, and all of its software is compiled from source. Here's my stats as of this writing (7/9/2004):

Software Version
Kernel 2.6.7-rc3-love2
gcc 3.3.3-r6
X11 xorg-x11 6.7.0-r1
Gnome 2.6.1_rc1
KDE 3.3.0_beta1
ROX-Filer 2.1.2
Mozilla 1.6-r1