Thanks for the Reply. I was mostly looking to see about general 32 vs 64 not just vista, but both Vista and XP. I do not actually own Vista yet, but during installation of XP pro from another disk, (Not Dell) I found I needed the Raid controllers. I found them through a mix of Dell and another post here on geekstogo.com
I will be upgrading to Vista After my College gets the disks. However I was curious about the differences and even if I should worry about the 64 bit version. My Processor is 64 bit, but I feel I am not using it's full potential running XP 32 bit. But I can't install the 64 - bit version because the Raid Drivers are only 32 bit.
Thanks again for the reply.