um ur doing great already getting them at 3$ a piece. I dont ask if there working i find that out when i get home. models i just find out when i get there and then still doesnt matter to much, Basically just missing that if its a hardcore gaming tower then you can pay a bit more fore it cause its gonna hve alot more parts then a standard computer. Ur actually the first person to be brave and post how much were getting out of the computers :-p