Jim, I have never had a Mac so I can't say how efficient they are but a couple of years ago I started using Linux.
I purchased a laptop from Novatech with the bits and pieces installed that I wanted eg. HD, Video Card, maximum memory etc. but no Operating System.
I installed Linux (Peppermint 5) which was free and have added any programs I needed as I went along (all free).
I joined a Linux forum (like this one) and any problem I encountered I asked the forum and it was always answered (like this one).
There are some programmes that only work on MS Windross, I think PSP and Photoshop are the main ones I miss, but that is because I must improve the quality of my pictures and will now resort to using a light tent and setting the camera and stop using these image manipulation programmes.
Sorry about this rant

but I love the simplicity of Linux with no advertising popups and continual updating.

PS Being a frugal Scotsman I like the idea of free.

Some may even say I am a cheapskate and around Stevenage 'a miserable Scots git'

but I like Linux