My current computer I can 3 Box in any major city but its rough at best.

I use a stock HP Pavilion dv7 laptop. It has overheating issues that I have tamed for the most part with a giant fan, however I just want to get a new system.

I was really hoping for some suggestions on systems rather than naysaying the possibility of it being possible. Again I don't know hardware so trying to build or pick my own system is a major problem.