And with the shellshock and heartbleed security issues I would reconsider you choice
Yes yes, someone had to say it, so what's the ratio of security vulnerabilities discovered from linux and from windows? from linux 2, from windows 1000s and increasing . not to mention the sheer number of viruses developed solely for windows every day. oh, and I almost forgot it --- linux is free, windows is not. so you're getting better security and it's free.
btw, I also stopped using Skype a while ago as I understood that no one really knows what skype does in your computer as they have not released their client's source code. to make matters worse, skype has obfuscated their program to prevent reverse engineering. To me it's all just too suspicious to allow skype to run in a computer that is constantly Proof of Stake minting and thus requires the wallet to be unlocked.