Congrats Sem - you're going to love it.

I'd have it on all the desktops here - but - everyone else doesn't know Linux ... and I got my ears chewed off last time I tried to switch.
Play with it - that's how you learn it. ( Grab a book or two. Esp. an administration book - very helpful. )
Untill they make it more compatible we're stuck with windows, but dual boot is nice...
Dual boot is not just nice, it's perfect.
You have your real desktop in Linux for everything - and you have your Windows-dual-boot for games only.
This way, you get consistent performance with your apps - and you get consistent performance with your games. Work with me for a second here:
- Do no browsing or installs with your windows, and lock down your install hardcore. You have a permanent clean install of windows for optimal game performance. Compatibility is a non-issue.
- Your Linux install is incompatible with ALL Windows bullshit, and, you have far higher security options than you have with windows. Plus, don't forget the great customization, free apps of the highest quality, and all the other eliteness you get with Linux.