[Brian]

Originally Posted by johnwd3

To me OF is missing the ability to REMIND me of the key thing I said I was going to do next week at 11am on Thursday morning.

If you have the Growl library installed on your Mac, OmniFocus (as well as many other applications) can use it to pop up notifications that you can customize to suit your needs.

You can grab Growl here:
http://growl.info/

Add start dates to the actions you need reminders for, and you're set.

That said, my own personal use style is to use iCal for appointments and events I need "pushed" to me - this is especially important because third-party applications can't do pop-up notifications on the iPhone. iCal, however, can.