So you need an expensive unlocked CPU to build a basic gaming PC?
I sir would go with a AMD system and put the extra cash towards a better GPU....
You don't need an expensive unlocked CPU, but it doesn't hurt. You most definitely don't need an 8 core CPU which would basically limit you to Bulldozer/Piledriver. If you're looking to spend the money on a 6/8 core, you'd be better off with Sandy/Ivy.