LOL OMG seriously, when I first did dual monitors when I was in 8th grade I had to lift the CRT to about my head level so it was above the laptop screen (I did a vertical dual monitor). That was such a bitch XD I also did the 19" CRT change for the other PC a year or two before. really pushing it.
For computers, buying cheaply and often will only leave you constantly in a world of shit.