Printer settings
On my Windows computer I have two "printers" set up in Control Panel for the same colour laser.
The default has its settings set to mono, thus saving time printing as it doesn't have a fit whenever it encounters a blue link on a webpage and starts to fanny on with all the other toners.
If I want to print in colour I simply send the document to "HP Colour" and it prints in CMYK goodness.
I presume a similar system could be set up here where you have a few defaults on the mac with different names if you want to use settings frequently.