Linux welcomes you with arms wide open
I understand the need of some Windows for PC players, but dual booting is usually a good option. I'm almost 2 years into having my computer linux-only, and I'm not ever going back! Not for my own computer anyway. I still don't have much choice for school and work
Ubuntu is super newbie-to-Linux friendly. I used it for about a year and the community is pretty helpful. And did I mention that it's free?