Once you change from a geeky Windows user to a professional Mac user, first you will encounter a problem regarding to keyboard shortcuts. I've experienced it before, though some of the shortcuts are the same but most of them are different.
Here are several tips and shortcuts that I think you will feel it useful if you really want to transform your Mac shortcuts into old Windows arsenals.
Maybe you've noticed, in most of the shortcuts CTRL key in Windows has the same function as the Command key in Mac. Basically, by swapping the action performed by Command and Control of your Mac, you can get most of your new Mac shortcuts suitable for Windows switchers.
To change the action of modifier keys, there are only several steps need to be done: