Since this will be my first build, I'm looking for a second set of more experienced eyes to look over what I've assembled and let me know if I've made any boneheaded mistakes, like a video card that will block other ports on the motherboard, or a poorly arranged motherboard, or parts that won't fit in the case, etc.
I also welcome advice on which parts I could spend a tad more on for a significant increase in performance, or which parts I am spending too much on. Like I said, I'm not going for flashy. Just a reasonable light gaming PC (tower) around $600 or so. I'll figure the monitor/keyboard/mouse separately. Thanks.