One of the Crop Tool settings should be "WxHxResolution" - is that right?
It's the one that's ticked in this screenshot: http://1.bp.blogspot.com/-M8RAa8SC5go/VIndVW1j_fI/AAAAAAAAWHA/hHS3LUHDI1g/s1600/save%2Bcrop%2Bpreset.jpg
In my opinion, complete overkill. Just get a regular tablet to replace your mouse. As you say, they are for artists.
In addition to Brian's thoughts, it always comes back to the last paragraph in this article. Don't do it.
Hi Jaimie, which calibrator do you have?
It's vitally important to ONLY compare your images in Photoshop, or another Adobe program. You can't trust viewers like Preview to be properly colour-managed.