This week, I discover this freeware: steam mover. With it you are not obliged to keep all your steam games in the same hard drive.
http://english.eazel.com/lv/software...d/kl648116.htm
http://www.01net.com/telecharger/win...es/113051.html
if from your country these two links don't work, use google and search "steam mover"
I have so many mods that I have my first hard drive full. Steam mover allows you to have steam games in 2 or three differents hard drives. I moved two games towards my second hard drive and let my total war games in the first one.