I'll throw this question out in the open..

I've been looking around the last few days to try and find something that would allow me to read all my linuxforums.org email, allow me to set reminders of stuff to do, work out time schedules and interdependency of individual projects and various other bits and pieces. Also allow "timeline" graphs, and deadline setting and control. Despite looking at 4 app's so far, and briefly reading about several others (then moving on..), i just cannot seem to find one that does it all in an easy to use manner.

The software only really needs to be accessible by one person from one PC (running Linux obviously).

Anyone have any recommendations?