vitunes is a curses-based music player and playlist manager whose goals are a minimalistic appearance, strong vi-like bindings, and quick playlist creation/management. It does not strive to be a full-blown media player, but rather a full-blown media indexer and playlist manager. It uses MPlayer to support a wide range of media formats. It also makes use of TagLib for metadata extraction from many common formats.
xstatbar is a minimal system stats viewer for X11. It shows stats for CPU usage (with support for multi-core processors), memory usage, the number of processes, battery usage, volume, and time. It displays as a small, horizontal bar that integrates nicely with tiling window managers.