Blackbox is that fast, light window manager you have been looking for without all those annoying library dependancies. If you have a C++ compiler and the X Window System you can compile and use it.
NovaWM is a small and fast window manager for X11 on Linux/Unix. NovaWM
is very unique and different than other window managers in many ways, including style. NovaWM isn't too large any toyish like popular window
managers and desktops.
Xaewm: minimalist window manager for X-window, is a fork of aewm++, with a little menu based on xrun, you can put your prefer applications made easy, very light and fast.
Waimea is a fast and highly customizable virtual multiple desktop window manager. It supports advanced features like transparent textures and Xft fonts.
dockclock is a small, fast docking applett designed to work with fluxbox / blackbox. Showing the time and date is its main purpose, but an alarm of two types - countdown and a standard one will be supported.