My early 2008 iMac is getting slower, so I'm probably going to replace it with a Mini when the new models come out. I'm self-employed, and the Mini would be my new work machine. I think it would be helpful to have a second display because I typically have multiple things open simultaneously, and it would be a lot more productive to have them available side by side. Can a Mini use an iMac as a second display? If so, any drawbacks? Also, if the iMac's hard drive craps out, that eliminates the ability to use it as a display, right? AFAIK, there's no way to use the iMac just as a monitor; it has to be functional as a PC to be able to display video from an external source. Thanks.