Need Upgrade Help
So right now i have a dell inspiron 530. It has an intel core 2 duo 7400 6gb of ram a 750gb hard drive and a geforce 9400 gt graphics card. well, i am in dire need of some upgrading. it is primarily just a wow computer so it doesn't need to be some super beast. I'm wondering, would it be best to buy a total new computer, or because i know dells mobo's block overclocking, if buying a new mobo and a new graphics card would let me get some more time out of this current system. any help will be much appreciated.