Yorkspace.com has a small list of essential tools. I use many of these, and a few alternatives…
From the Yorkspace.com list have not used the torrent, podcast or mp3 tools, neither have I used Thunderbird.
There are a couple of tools where I do not use the one listed, but I use something very similar and these alternatives are listed below.
The Yorkspace.com list seems pretty good and if you don’t have all the software listed, give some of them a try.