sudo port install coreutils
gdu -h /Volumes/Solution\ Centre/* | gsort -h -r | ghead -n 50
Other tools to get server space (windows)
du -hsx * | sort -rh | head -10
Tail will keep running while it's watching x file and display any changes as it happens.
tail -f <filePath>
tail -f ~/sntop.log
Same location in Snow Leopard
A bunch (shell script) of Mac Terminal commands which allow you to easily turn some annoying Mac features on/off. E.G.
Links to the commands