Hello there, I was wondering if anyone had any thoughts advice on buying second-hand Mac desktop. I'm looking at either a Mac Pro (2010) 8-core (Xeon), 24Gb Ram or an iMac (2012/2013) i5 quad-core, 32Gb Ram. Both should upgrade to the latest OS, but then no further, which I'm ok with. I need it for heavy data analysis. So I'm particularly interested in speed and running multiple apps at the same time. Anyone have any idea as to what would be the faster/better model? Many thanks!