IWeb
Adobe will give you a version of Photoshop for the Mac, if your a registered owner of Photoshop for the PC.
They make Quickbooks for the Mac, and if they are like Adobe, you can get a Mac version if your a registered owner for the PC.
Anything from Vellum., If it's good enough for Burt Ruttan to build space ships with, then..... And it will read AutoCad files.