Hi everyone, I just upgrade from Tiger to Leopard on my new iMac yesterday. with the bootcamp provided, I am thinking if I should install Windows XP or Vista on the iMac to make it the All-In-One machine. And I need the help from you guys. 1. Is that all vista ultimate versions suitable on the iMac? 2. I heard that install another operating system, e.g. Windows on the mac with lower the performance of the machine, making it slower even when you use Mac OS X. Is that true? If that is the case, isn't that we should not install anything else on Mac but just focus on Leopard? So what is the use of Bootcamp? Hear from your advice, thanks a lot. I am stupid and new to mac.