You should see the recent thread about Apple being the new Amiga... Macs are hardly in the same category as Amigas. Macs are designed around the idea that users are essentially retarded and need to have their options limited (witness the one button mouse, and Apple's history of hermetically sealed cases).
While Amigas are pretty easy to use, they always encouraged users to learn and tinker. Notice all the schematics and pin outs in your Commodore user manuals? Ever see that in a Mac manual?
Microsoft products are unusable garbage. Thats a given. Macs are only marginally better though.
You want a good solid system that carries on the spirit of the Amiga, get yourself a good modern Linux install.