Welcome to the forums, George! My name's Kevin, and I'm new here as well!
I like how you mention that your buddy said Linux Mint is "good for starters." I've been wanting to touch on that subject for a little while now.
I consider myself an advanced Linux user, but I converted my laptops from Gentoo to Linux Mint, and made the process final yesterday. I'm very happy with my decision so far, and I have found that the community support here is excellent. I just wanted you to know that as you grow and become more comfortable with a Linux environment, I encourage you to step outside of the box and do some exploring around. Compile things from source (basically the main reason I used Gentoo in the first place) and see how things tick. Spend some time in the terminal. You'll be surprised at how much you'll learn in a short amount of time, and how much more efficient the CLI can be sometimes!
Good luck to you on your Linux journey. I hope Linux Mint stays kind to you!
P.S.: Since you've recently discovered 'ls,' go to your home directory and issue 'ls -lah' to see all files in your home directory and their sizes in a readable format. You can use this to find larger files that might be taking up too much space in a given directory. I use it when I forget to use logrotate