If Envy's the answer to Ubuntu users' proprietary graphics drivers installation dreams, then Automatix2 is the answer to everything else.
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In essence Automatix2's a GUI that automates the installation of some of the most popular applications in the latest versions of K/X/Ubuntu and Debian — including a few of the naughty ones. Which is why it opens with a warning about what not to install if you live in the US. (Funny, I always thought America was supposed to be the land of the free…)