Why get a mac if you only running an Mbox..It is my understanding that the MBOX is limited in tracks..even though for many it is enough, but that being said I would save money by buying a P.C. and spend about $1500 on a MiC pre, About $500-$1000 on a Mic and any sound treatment. This leaves you roughly about $1000 for an interface. This is just a rough idea...with out knowing more details its hard to say, who knows he may only need a cheap M audio sound card a decent computer and budget mic.