My 11 year old son's PC has just about crapped the bed and I need to upgrade for homeschooling. He spends a great deal of time on it doing schoolwork and mindcraft games etc. #1. Should I pay the extra $200 for the better graphics card. (I will upgrade the ram to 8gb off the start as I have with my other macs). #2 Can a new Samsung 55" tv work as a computer monitor for the mini if we move his classroom downstairs? Thanks for your help.