Just bought a http://www.newegg.com/Product/Product.aspx?Item=N82E16883229362, it should arrive sometime tomorrow. From what I've read most people are saying to upgrade the PSU to a 650w corsair for around 90 bucks and the GPU to a GT 630. i have a budget of around 80-90 for each,maybe a 100, will I be able to put those two into that computer and which model of each should i try for?