I know Steve likes and recommends Action Outline for a PIM (Personal Information Manager) and I tried it out as well as several other programs that were recommended in the comments under the relevant post: http://www.stevepavlina.com/blog/200...ng-mental-ram/
By far the best one that I've found is UltraRecall by Kinook: PIM software for Windows - personal information manager and knowledge manager for Windows
It has a lengthy trial period and I really put it to the test. It features a free reader as well so you can keep your database (which is kept as a single file!) with you on a pendrive and use your info on any computer. Very useful for me when I'm trying to share my research notes with others. Web pages, pdf's, all office docs imbed into the interface and can be linked and inter-related within the outline. I just ponied up the $100 for the unlimited pro version and I am continuing to discover more and more useful capabilities. Very cool app.
I also use DavidRM Software's The Journal (per Steve's recommendation) and it is an elegant and usefull application that delivers exactly as it should.
I axed MS Outlook as soon as Thunderbird was on it's feet and running. I find Outlook bloated and complicated and Outlook Express under featured. Thunderbird works beautifully for me and keeps getting better. I recently added an extension called Reminder Fox which helps me keep track of all my auto-payment schedules as well as all the birthdays and travel dates, etc.
You can find it here: https://addons.mozilla.org/thunderbird/1191/
Feel free to ask me anything more.