Apple's support site has a few articles that you might find helpful. A good one to start with is "What’s it called on my Mac?" which matches Windows terminology with its comparable Mac version. Another one is "Mac tips for Windows switchers" which outlines the Mac OS way to perform common tasks. But if you poke around, you can find a bunch of interesting stuff to check out.
If I do, it's going to be way down the line. Murray's been talking about kits and consolized versions, and lower prices, and I want to see where they go with with those. It's a cool idea, but I wasn't enough of a true believer to put my money on it at the beginning, and I'm content to keep waiting.
I suspect surgeons doing surgery in their off hours wouldn't be just weird, but also very creepy.