Hi everyone, 1.I was wondering if it's possible to install Windows 2000 on my iMac 20" intel core 2 duo then upgrading the Windows 2000 to Vista Business... 2. How does the whole 32 bit and 64 bit operating system come into play? This is for my work computer so I need the duo operating system. 3. Can I upgrade 32bit (I assume Win2000 is 32 bit) to 64 Bit Vista? 4. Can I run a 32 bit Vista on the iMac? or Can I only run the 64 bit?