Ian Palangio's Business Productivity : Email, Task and Time Management with PIFEM
PIFEM uses the out of the box Outlook 2007 features of flagging and categories to manage emails that you don't want to action/complete immediately. Once you date/time flag an item it is no longer clogging up your brain with secondary thoughts. If you manage it well... you can eliminate a lot of distractions from email, and focus on your highest priority items with laser focus.
Ian Palangio's Business Productivity : Email, Task and Time Management with PIFEM