i really want to build a gaming pc and i really really want to plsy guild wars 2 and i like the the haf 912 for my case if i have to save an extra $50 ill do it and please give a link to the website
You're only hope of any sort of capable gaming machine at $300 is with AMD's APU's.
Yeh, intel really isn't worth it unless the budget is $600+, due to the fact that the A10 just destroys any intel chip in the same price bracket.
A little over budget, but can run just about anything with decent FPS: http://pcpartpicker.com/p/D1QU