I would opt for a ASUS z68 motherboard. Does not matter which model as long as it has the features you want. The p67 is getting a little long in the tooth. Brand of memory that work well are Corsair, Kingston, and GSkill.
And never, ever, cheap out on the power supply for a gaming rig. Even a moderately powered on such as yours. For that single video card you need at least a 80 plus certified PSU from trusted makers such as Antec, Seasonic, Silverstone, and XFX. In this case you can add OCZ as well. In short, Logisys is crap for a PSU, although some of their cases are not so bad. Apevia power supplies are in the crap category as well.
If you could stretch the budget just a wee bit more, you might bump up to an AMD 6870 card.
seems pretty decent but if theres room in your budget go for the i5 2500k which can be overclocked in the future to give your build a little more longevity; asus z68 which is great for overclocking, and possibly step up to the 560 ti and go for maybe a 650-750w psu if you ever want to sli your video card
all these will add extra life to your build so you wont have to upgrade as soon