Do you run light OS on your high end system?

[daniroma]

Yes. While Gnome3 is using so much of my CPU resources (Unity is a mess for me), Xubuntu with XFCE is a joy.
I strongly recommend it.
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XUBUNTU 11.10

[sidzen]

Is this thing still going on? Time to kill it, Moderator!

Use LXDE or XFCE if you must have DE -- period!

[foxmulder881]

I think I probably bog my system down too much of the time. I run 2 Linux systems via VirtualBox on top of my regular system which also usually has my Email client and Web browser open all the time. Between those few things alone, I'd say it hogs most of my 2GB available RAM. But I never have any dramas.