I haven't been playing GMod for very long (since last fall) and I was wondering whether it is possible for Mac OSX users to make custom maps for HL2 and GMod. I know that the Source SDK, which includes the Hammer editor, is only for the Windows operating system. Is there any way to map on a Mac without porting Hammer and/or the whole Source SDK?
Edit: Bootcamp is not an option
Edit #2: This isn't a Mac flaming thread. I use Mac because it isn't based on top of a very old operating system, which means it does not crash as much, and that there are less viruses for the Mac OSX.