I've probably said it a hundred times in this form: nVidia has very good support for Linux, therefore, you should support nVidia. Yes, ATi cards are excellent, too, but their support is limited and sometimes difficult to get working. ATi could simply do a better job. It's very doubtful, except for some FX5200 cards, that you'll have trouble getting anything nVidia to work in Linux. They've got a long history of Linux support, too, and the unified architecture pretty much insures that any feature implemented on the Windows side, is also on the Linux side. With that kind of support, as a Linux user and supporter, you'd be doing yourself and the Linux community a favor by using nVidia products. When ATi and Intel start seeing that the vast majority of Linux users are buying nVidia, maybe they'll get the hint and get better Linux support.