1. I use an LCD, it is hardware calibrated.

2. No. I adjust images to suit what I see on my screen.

3. No they don't. Sharpening is a bit subjective, what is over sharpened to one maybe not be to another.  I do sharpen differently for web images to the sharpening I apply to print images.  Your last upload the sharpening is visible, but acceptable for web use imho.

4. The NEC CRT monitor if that is the one that is correctly calibrated. My experience is that LCD monitors are very poorly set up straight out the box, if you calibrate it colours and tones should be the same on both, assuming the LCD is of the same quality.

 

 

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html