I looked into it.. I'm not upgrading. I'm still shopping for a better computer. I would build one, as you have tried to guide me that way, Grim, but I have no clue where to start or how to do it or whatever. It's not my thing and I'll fuck it up. I rather pay to have it built.
I currently use a 9" tablet with Android 4.1.1 for work, a Windows 7 Ultimate (64) on my laptop, gaming pc and HTPC.
And maintain a laptop with Windows 8 (pain in the ass with updates, maintenance and boot errors) but it was just a 30 euro upgrade.
Android - Pretty good for phones and tablets.
Windows - Expensive, but very good at what it does.
OS X - If I want to run linux I'll do it on a PC rather than a mac.