If you're going to buy a copy near the start of its lifetime, it would be far more adviseable to spend a little more and get the Retail version - especially now the restrictions on transfer are no more. As you say, if you went OEM you'd more than likely run into problems with the license during the 5 years you might be using it.achitophel said:So, as a matter of interest, does that mean that people generally buy the retail version of the OS, on the basis that it will be cheaper in the long run? I know that the mobo is one of the least frequently upgraded parts, but even still, I'd expect to go through 3 - 4 mobos in a 5 - 6 year period (assuming Vista has the equivalent life of XP)