It's going to be a 27", 1 TB Drive - that's where I'm at now. The question is the same old question, so I apologize for that in advance. But this will be my first real Mac computer, I already have iPhone and iPad. Considering the following uses (top ranges), how much will I actually need to upgrade from the base model? I know more is better, but is more actually needed? Uses: Audio production using Logic or Protools, will use external drive for that. HD video editing, short videos up to 30 minutes. most likely in iMovie or FC Express iOS Development Web Development, Adobe apps. Light gaming Specs in question: RAM 8 gigs minimum, noticeable difference with 16? Processor, I have no idea here. I don't mind if it takes a few extra minutes to render a video, or if max out with a few fewer effects processors on audio. Which one of the processors has the most noticeable improvement over the next lowest model? Video card: at what point does one require the 2GB over the 1GB? These three are the biggies, and I understand the fundamentals of what each contributes to overall performance. But a lot has changed in the 4 years since I bought my current Dell XPS Q6600. Any thoughts are appreciated!