slackware with like 7 browsers, prettymuch ALL the GUI's you can run on linux, plus prettymuch any other major piece of software you can find precompiled for it comes in at about 4GB
just the "install everything" option will end up at about 3.2GB or so for slackware 11.0
just the "install everything" option will end up at about 3.2GB or so for slackware 11.0