yaix2 - 10:50 pm on Mar 8, 2010 (gmt 0)
I am some years Ubuntu-only now. Its different from Windows, Problems are different.
A plus for web dev is that the local PC runs the same system and setup as the server.
As for software, never download any executable from the web and click on it, like a "Setup.exe" on Windows. Exclusively go via "Applications -> Add/Remove", click on the Program to install and the system does the downloading and installs any required additional software. Updates for each installed program are done automatically. So there are no individual Programs checking for their own "Updates" all the time.