i need some help trying to find the right parts for my girlfriends brother first build hes 15 so does not have to much money, we have the case and PSU 500w i want to build it around the Core i5 3570K, already having the PSU and case i will get him a hard drive and maybe ram all i need is the motherboard and video card, i want it to stay around 300 to 400 at most thanks for the help.