What the title says. I've held onto XP for some time now because I had learned how to make themes for it, and enjoy doing that kind of stuff with UIs, but I'm 32 bit, and with my computer's specs, I've needed a 64 bit windows for some time, so I've decided to just upgrade to Windows 7 instead. I'm looking though, and I see some different versions, so I'm wondering which I need to get: Windows 7 Pro Upgrade Windows 7 Pro Complete Package Windows 7 Ultimate Upgrade Windows 7 Ultimate Complete Windows 7 Home Premium Upgrade Windows 7 Home Premium Complete Looking at what I'm wanting to do, which is higher-end gaming, and photography/graphic work, Windows Home Premimum even would be fine, but I'm open to suggestions. I'd also like to know what the difference is between the upgrade and complete package is. Will each upgrade me from XP? If anyone could help, that'd be great.