an X-inch monitor (typically CRTs) is theoretically 12% larger than an X-inch wide-screen monitor (typically LCDs). so you have more Windows desktop space if you use a 19-inch CRT monitor instead of a 19-inch widescreen LCD monitor. however, a 19-inch CRT monitor would occupy approximately 5 times more of your REAL desktop space than a 19-inch LCD monitor.
"wala lang." :-D