Hi, I just bought an 24in 2.8ghz iMac... its my 2nd mac (my first was a ibook g4, which i couldn't get used to, so i sold it).. hopefully, this mac will be different. The main reason I bought a mac now (just before the new ones come out) is because of the crap aussie dollar, i think the next imac will be more expensive, so this was my last desperate chance to get a 24in imac.. and i got this one for $1950 refurbished, which i thought was a good deal. Anyway, to the important question: Im an architecture grad, and I got ArchiCAD on my imac, and i also need AutoCAD, but apparently, AutoCAD doesnt run on osx. I don't want to dual boot my system, and i was looking at a program called highdesign. So my question is, is HighDesign nearly as good as AutoCAD? does my cad files work on HighDesign? also, is there a program like Revit on OSX?