I'm about to take the plunge on a new 27" iMac but I wanted to wait until Lion comes out later this month so I get the 10.7 software DVD. As I will need to run Snow Leopard, will it be possible to install it on the machine? I know that new models do not retrospectively support older operating systems but I'm guessing that the code for the 2011 iMac is already baked into 10.6, no? Any guidance would be greatly appreciated. Thanks!