I'm looking for a Pc case that seems flexible, so I can change parts from cheap to super for now. I just want a basic gaming parts for now that can run simple games like The Forest, Rust, Garry's Mod at the highest settings. Then after a few years i'll replace the parts with some high performance parts to run other games like Battlefield 4 or Battlefield Hardline on ultra settings. I just need the hardware, I already have a monitor, mouse, keyboard. My budget for now is around $500-$800 try to make it less than $1000 no matter what if that's the case, then just tell me the parts I need for the best pc parts to play super high performance games. I'm new to this site so please don't be an douche and try to answer my question.