My understanding is that most audio work is mac, so wouldn't that be an issue? I know AMD hackintoshes exist, though can be a bit tricky to set up in a stable fashion. It might take some time for support, too.
Macs are severly behind in terms of audio work. If you get something like UAD then Mac is viable, but when you start using better quality plugins like from Acustica Audio, then Mac no longer makes sense as it is too slow.