gnome/linux personal orgnizer

[adler-wRvlPVLobi1/31tCrMuHxg at public.gmane.org (Stephen Adler)]

Guys,

Yesterday I had a bit of a meltdown at work due to being overwhelmed 
with deadlines. After the smoke has settled, I realized that my life has 
gotten so complicated, with meetings, tasks, deadlines, etc. that I have 
to start using some kind of software tool to keep my work life 
organized. It used to be that I could remember everything that needed to 
get done, but I've reached a new stage in my career where that's not 
possible.

So... can you guys recommend a software pages to organized ones 
professional life, with meeting dates, reminders of tasks that need to 
get done etc? What are the popular applications for the gnome and/or kde 
desktops?

thanks!

Steve.