Better Mail
Simplicity is the Apple way. Sometimes that comes with a shorter feature list. Apple's Mail is a good example. Even your grandmother could use it with little or no help, but that is partly because it has so few features. Just try to get granny to have a go around with MS Entourage. Luckily, there are more than a few Mail users out there that have cobbled together some of the most asked for features in the form of add-ons and Scripts.
There's a nice repository of add ons for Apple Mail that catalogs some older additions and scripts as well as a more up to date list at Hawkwings that is more comprehensive.
There's not many that I have found useful for Mail but the Google Maps plugin and GoogleFill for reverse address lookup are both handy additions for Address Book.
Technorati Tags: Apple, Applescript, Mac, OSX, Productivity, Tip