I'm trying to buy a 2011 27" from my former employer. I set the computer up when it was brand new and left on really good terms and have offered to buy this machine but I'm not sure if they are going to sell. I've been looking around and would consider buying another older model but my real question is do all the silver iMacs have the intel chip and are capable of running mountain and supporting the Magic Mouse? ie. will a 2008 iMac support the Magic Mouse?