Regardless of the device, the only purpose of input color settings is to attempt to get the color in your files from the incoming color space -- which is whatever space in which they were created -- to their destination color space -- which is the printer profile you're using.
So, since all Adobe applications use SWOP and sRGB as their default color spaces, that's how I always set RIP's. I hear a lot of pitching of Gracol and see a lot of people recommending using it but my response is that when Adobe makes it a default, then I'll start setting RIP's that way. Until then, unless you or your client have created your files in Gracol, setting your incoming CMYK space as Gracol serves no purpose, and does actually corrupt color to a small degree.
Note also though to always set to use embedded profiles. That way as long as your images are tagged, the pass through will be correct. Also though of course getting the input settings correct won't help you a whole lot if your printer profiles don't reflect what your printer actually prints.
As far as matching a monitor goes, in a properly set up color managed workflow, all monitors are is windows to look through to see your work, and profiling them is very much akin to washing windows. If you wash the windows well and correctly, what you're after is for the window to in no way corrupt your view of what you see through it. So the answer to your question lies in the rest of your color management system. It must all be set up and functioning correctly before you can hope to see what you're going to print on a monitor.
Mike Adams
Correct Color