[jrk86]

Well if I was you, and did not have Vista Business prior here is what I would do and why. I would buy the full Vista Business software, not the upgrade. Reason behind that is then I can use it to reformat and also upgrade. If I bought just the upgrade then I cannot use that disc to reformat, because it needs a prior OS to upgrade (like going from XP to Vista this would be best used.) If you are really looking to go from Basic to Premium I would suggest buying Vista Premium, not the Vista Premium upgrade. Do you currently have the full install of Basic? That is another thing is if you have a upgrade disc of both it might not help you out much. But if your computer has a factory restore option to go back to Basic, then the Premium upgrade disc would be good enough. I myself am looking forward to Windows 7 which should be out late late this year or early next year.