Now before ya think, "gaming box" read the conclusions page. This build really excelled on content creation and productivity. It's a lil old so I'll bet ya can get closer to ya $550 limit
"Intel's Core i5-3350P processor upgrade indeed propels our $600 gaming PC to an entirely new level of performance in our content creation and productivity benchmarks (particularly all of the threaded tests). A limited capacity for overclocking is better than no scalability at all. So, in the end, our extra $100 more than doubles performance in this critical piece of our quantitative analysis."