Just looking for some advice for viewing photos and 4k videos. I've got a 2011 27" iMac and I'm using a seagate thunderbolt adapter with a 120gb Samsung 850 evo SSD and an internal 3tb hard drive. The SSD is used for the OS and apps and the HD is for data. I also have a 4k TV. Options: - Sell my old iMac and buy the new iMac. Persist with an external HD connected to my Nvidia Shield TV for viewing photos and 4k video. - Keep my old iMac and build a PC to connect to the 4k TV - Buy both! – new iMac and build a PC What do you guys reckon?