A lot of aspiring web designers don’t have the pockets for enterprise web tools.
Fortunately, deep pockets are not required. Neither is theft, pirating, or whatever other euphemisms you may choose to employ for the moral equivelent of using without paying for. This article shares 15+ Mac applications for freelance web designers. They may not all be free, but certainly not all of them have a fee either, though I’m sure donations commensurate with their usefulness would be appreciated.