Come over to the Dark Side!

I'll just throw a monkey wrench into the whole thing and suggest you come over to the dark side and try Linux. I know, I know, it's learning something new. Well, I'd suggest...not so much. Consider Zorin Linux (download from here: zorin-os.com). There's a free version to try as a live DVD, and there are also the versions "Ultimate", "Business", "Multimedia", and "Gaming" you can buy for somewhere between $36 and $45 (US) - the actual price is in Euros. It has the advantage of being able to change the desktop appearance with a click to resemble Windows 7 or XP, Mac, or Linux-Gnome2. It's based on Ubuntu 12.04, so you'll get excellent stability and 5-years long term support. There is actually very little that you can do on Windows that you can't on Linux, and for your favorite Windows software there's an interpretive program called Wine. At the very least, give it a look...