well since you got the 950 and p6t for 175 id say thats almost a steal. but yea go for a triple channel kit which are usually 12 or 6gb and have 3 sticks. for a video card i would recommend a 6950, 6970, or a 570 all are really great cards and you cant go wrong with either choice. get an ssd preferably a 120gb and in my opinion the m4's made by crucial are the most reliable. the case is all your choice of what you like but i will recommend a haf 932 or any corsair case and for power go with a corsair, sesonic, or xfx 850watt