I'm not sure I fully understand RAM requirements. I'm wanting to buy a Mac Mini with 1GB RAM which seems quite enough for most of the applications I want to run. But OS X requires 512MB RAM, Neo Office 512MB and if I want iTunes running at the same time that would appear to be another 512MB. Total 1.5GB for not much in the way of applications. Or am I looking at it wrong? Can someone please explain?