On a differently note, If I upgrade the plan, could I download steam games into it and play it from different comps without reinstalling?
Not a good idea.Probably wont work, but regaurdless it is still slower. With steam you shouldn't even need to resort to that sillyness anyways. Don't you know that whenever you login as steam on different computers, you can download the game to that computer. And that whole steam cloud stuff even lets you transfer saves between computers.