Will you be upgrading your current Operating System to that of Microsoft Windows Vista (codename Longhorn) once it's released. My thinking here is that if you intend on using DirectX 10 you almost certainly will have to upgrade. If however you only plan on keeping the current graphics card you own then upgrading becomes less important. As far as I've learned Vista has abandoned its WinFS (Windows File System), this was one primary purpose for it's existence in the first place, at least according to Bill Gates. So will you upgrade or keep XP. In all honesty we each know where this is going, XP will be left behind by programmers who seek to improve applications solely for Vista. I think because of that fact I'll be upgrading to Vista when it's available (provided I have the money of course).