After a very long time, I have finally decided to buy a computer to play video games on. I am using my wife's labtop right now, but I am getting 10 FPS on Shogun 2 lowest settings which isn't going to work. I have a newborn daughter so I can't spend too much, so I narrowed down my choices after a visit to a local Bestbuy.

http://www.bestbuy.com/site/Gateway+-+Desktop+-+8GB+Memory+-+1TB+Hard+Drive/6835451.p;jsessionid=AE693BC36D87A94460363178FD2205F4.bbolsp-app03-119?id=1218808631512&skuId=6835451&st=dx4870-ub318&cp=1&lp=1#tab=reviews

http://www.bestbuy.com/site/Asus+-+Essentio+Desktop+-+12GB+Memory+-+1TB+Hard+Drive/7453044.p?id=1218846427580&skuId=7453044&st=cm1745-04&cp=1&lp=1#tab=specifications

Which was one is better for gaming? I can't purchase anything more expensive so yes, they are going to stink, but I am not looking to play ARMA II on ultra high settings here; I want to play games on more than 10 FPS.

Standard question: Are you willing to order the parts and assemble the computer yourself? If so, doing such would save you money.