I'm wondering which OS to get. I think i'll get XP for now untill early next year when drivers and bugs are sorted out for vista.
But can the OEM vista be used as an upgrade over XP, because my thoughts are that if it is oem, then microsoft would'nt include the option to do an OS install over another OS (because it was intended for the original manufacturer, and the they would be doing a clean install most likely).
Also does 64bit XP have a much greater performance than 32bit (which I would expect it should)? And are the ranges of drivers and software really limited for 64bit?