Yes, ill upgrade power supply and get a brand new ( cooler master or corsair )
also chip in another stick of 4GB hyperX
and yes just to clear every1s doubt, m not currently looking at 4K gaming...the max i will go is 1080p, that too if at all i connect to my TV, which i normally dont with my desktop
as far as gaming on big screen is concerned i'd rather connect a laptop and game on it.