OK so, I badly want to play any of these games, L4d, rollercoaster tycoon, or the sims. Now, we are a mac family and dont have any PC computers. I have heard there is something called Bootcamp to switch from mac to pc but i dont have any windows cd's such as vista or xp, so i cant play the pc games i have. Also, i have the sims complete collection for my mac but everytime i try to install it it just ssays, like....error code -36 , sound.far cant be read or written or something like that and i tried going to the folder, userdata and draging that to the hard drive but when i do that, it says "userdata00004 cant be read or written, error -36, so i do not know what to do. So what im basically trying to say is here, i badly want to play some pc games on my mac without spending alot of money or possibly none at all. SO PLEASE ANY ADVICE OR HELP??? If you have any help to my problem that'd be great. Thanks!