LCD monitors turn dull is not because of its color. Its because the surface of LCD monitors tend to reflect back lights that falls on it, hence you'll see dull matt views on it. try using in a dark or no so much light disturbance area and you'll see the difference.

Calibrating monitors will take some time to be be perfect. Mine took almost two years but stiil there are some problems with it. And you need to check the monitor time to time to make sure the colors are consistant. Never trust your monitor 100%. try to get used to the color that you are using like CYMK or RGB. It will be more safer. Colors definitely will run when you change stations unless they all have the same settings. Not only Epson, some HP printers also could print out as close as offset printers. Try getting a printer with 4 basic color tanks - black, cyan, magenta and yellow. These are the basic colors for offset printing. Colors will be nice with printers that have 6 or more ink catridges but they are not accurate

BTW try not to use canon printers - their colors are too dark

If you are using the same brand of monitor, YES -but you still have to check the monitor settings

Usually there will be step by step guide in your photoshop that need to use the monitors menu (brightness, contrast etc) to adjust the monitor color. Just follow their instructions.
There is also one in the Control Panel > Monitor. Jut click the color icon and choose calibrate. Follow their step by step guide. But please, dont trust your monitor's color 100%.

Samsung - with the black casing one? Why dont try the Sony Trinitron range. I'm using that monitor for years, although not 100% accurate but it at least the colors are consistant