I'm interested in trying the new 965G graphics, but that is only a on
the motherboard option, so it doesn't apply to you, and for general use
the x700 will probably work better at the moment (but that might change
in a few months, when the new intel drivers are included by default).
Plus, I don't see very many 965G motherboards with DVI output.
DVI is available as an addon for the 965G boards:
http://intellinuxgraphics.org/documentation.html
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Have fun,
Steve