Thanks for Fluxbox. I am partial to its approach of generating a menu where you point when you need it rather than always losing screen space to a panel. It's working well. The generate-menu feature finds a lot of apps and saves time though most will want more customization.
To try it out without editing .xinitrc, you can simply run startx with the path to fluxbox as an option:
startx /usr/local/bin/fluxbox
The japanese key between Fn and Space, closer to Space, works as the Control key for me, but I haven't tried it in many applications yet.