My suggestion is a iMac, that is the prosumer model. The mini was never designed, marketed, nor intended as a workstation and/or audio/video editing platform It was meant as an introduction to the Mac line. If you, as you say “that i wanted to get into and try” then the machine as it stands should suit, however, if you had in mind more than try, the iMac is the way to go. And by the way, I am curious, why would you need to upgrade the processor, just for fun? It is a serious question, because I have been running a mini (an old one) for several years as a server with no ill effects. Just curious.