Thanks Jonathan, always great to hear what others use. I'm going to give moom and gifox a try.

A few that I would recommend:

* BusyCal (better calendar, more flexible options for creating private events in a calendar, more repeat options, etc.)

* Clipy or ClipMenu (copy/paste buffer manager and snippets)

* Stay (perhaps redundant with moom, too soon to tell, but basically it restores your windows into a logical place and you store different combinations)

* Choosy (allows you to map different URLs to open in different browsers when clicked from other apps... for example, you can set all google docs links to open in one browser, or rank a priority in which things open)