well, i know that is pretty much common sense that its cooler when its open, but is it possible that the same,warm air just keeps rotating inside the computer cause its not creating any air pressure case is open? well, i cant check all of those cause my computer has some parts that are made for Linux, and Win7 does not recognize em, but anyways,the amount of RAM is "unlimited" if its DDR3, and i think my power supply is ATX-350PNF (yeah i know its not too good anymore, its still the original i used to build this comp) and i have no idea about CPU, GPU or motherboard, but they all gonna go, but i dont like ordering too much in the same package cause i like pretty much in wilderness, and pig packages may take months if i order em from somewhere else but finland or russia, and here everything is kinda pricey on the web, and if i order from russia they add some extra charge cause they need to post it over the border, so ill just order few items at the same time from US or UK. http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.739464 <-- good?