Depending on how long this Windows 7 system lasts, if I have to get another system built, I've already decided to get some version of Linux. I may have to take a course at the local "jr. college" to learn how to use Linux, but I'd rather do that than paying a "subscription fee" to MS.
Wow, using W7 on the internet, umm, yeah
Anyway
With Linux you have to pick a flavor, yes they are usually referred to as flavors, and stick to it since many can be quite different.
Probably the most recommenced is Mint Cinnamon followed by Zorn. Mint has other versions but Cinnamon is the full up version. Neither are really hard to learn but it may take some time to get use to where everything is. As far as program compatibility you may have to ditch certain software packages that you used to and learn some new ones. Drivers may or may be available for some hardware although Linux has been getting better about it