To do is a lightweight widget that allows you to manage tasks quickly. It integrates with iCal, Mail and Mac OS X Leopard. This is the big advantage: you can manage your tasks without leaving these applications open.
Download To Do For MAC
Due Dates, Due Dates and Due Dates! Finally, the most requested feature made it. It even respects your date format preference (including Arabic, Hindi, Japanese, everything!).
Notes and URL can be edited, just hit ⌘I to open the Info HUD.