For anyone interested in playing Dune II natively I highly recommend Dune Legacy[0] - an open source implementation which
I personally found much better than OpenDUNE, which the link is based on.
Nice!
It fixes most annoyances of the original Dune II, e.g. you can use your right mouse button to order units to move somewhere, and there is finally a production queue.
[0] http://sourceforge.net/apps/mediawiki/dunelegacy/index.php?t...