So I've had a late 2012 iMac since it was new. I wasted a lot of money on it, and in the time since then I've learned a lot more about what I want to do with my computer and Macs aren't gonna cut it anymore. Its got great specs for an iMac, just a shitty GPU. I play some Steam games, do Photoshop, hopefully 3D modeling and video editing in the future. I know basically nothing about computer internals, so I spent a short time last night reading some stuff and watching a couple PC building videos. I threw this parts list together today based on ratings and my limited knowledge gained from my short research session last night. I hope I'll get $1000+ for my iMac, so ideally I want to cut this down to around that price. Is it much nicer to have 16gb of RAM? I have 16 now on my iMac, but my previous computer had such shitty specs I don't think I could compare them for RAM performance. Also, that motherboard is an SLI, which (after Googling) I found is a GPU performance enhancer when using 2+ GTX GPU's. Guess I don't need that? Pretty cheap, highly rated board though. If you guys need any more info, just ask and I'll answer!