Mattaburn writes with a story up on ZDNet UK reporting that Dell is warning businesses of the migration challenges that lie ahead as they move to Vista. The article notes what an unusual step it is for a company of Dell's size to be "toning down its sales pitch for Microsoft's Vista operating system" — particularly because "one of the issues the hardware vendor is warning business about is the extra hardware they will need to buy." Quoting: "'They need to be looking at the number of images they will be installing and the size of these images,' said Dell's European client services business manager, Niall Fitzgerald. 'A 2GB image for each user will have a big impact.'"