tcsysmon is a dock app that monitors Mem/Swap/DiskIO/Uptime and displays blinky lights for your interrupts and page in/outs. Its goal is to display as many real-time system statistics as possible with a minimum of CPU usage. It includes MMX routines for faster updates on newer CPUs.
wmCalendar is a calendar dockapp with a monthly view and an interface to iCal-based calendars like Evolution or Mozilla. It features Gregorian, Persian, and Islamic calendar support, moon phases, variable start of the week, popup detail info about a day's events, and app.launcher.