I'm a bit confused as to what version of vista i should use to take full advantage of the 4GB of RAM? I'm not really familiar with what x86 means, but from what i gathered it has the ability to run 32-bit and 64-bit processes side by side. Does this mean i could use the old bootcamp drivers for my macbook pro and use all 4GB of RAM, or do i need to do the round-about way of getting vista 64-bit and downloading all the drivers myself. Thanks for your help. Or is there even a difference between x86 and 64-bit vista? I'm starting to confuse myself.