I am not currently running it on my MacBook. :-(
I have tinkered a bit with Darwine. But haven't put my mind to get it working.
I am sort of hoping that the next version of OSX will be able to run .exe code, that is the rumor. We should find out more at the developers conference (Aug 1-11).
Here are some links... to running Darwine.
http://darwine.opendarwin.org/
http://wiki.jswindle.com/index.php/Wine_Watchtower_Library_2005#Installing
http://appdb.winehq.org/appview.php?versionId=4154&iTestingId=1344
A french one...
http://howto.stephane-huc.net/wine/theos/wtlib/
So.. if you happen to get it going be sure to share K!