I could use three screens (or two larger ones) at work. A pair of 19" TFTs doesn't seem so large after a year. Screen space is like disk space; you WILL fill it, and you WILL eventually need more.
Three Explorer windows, five SciTE windows, a PowerShell window, a CMD window, and two or three Remote Desktops each containing an average of two PowerShell windows and an Explorer window. I need a few of those huge 24" widescreens, and a decent keyboard and mouse (where 'decent' is defined as 'Dvorak-layout Model M and Logitech MX1000', the same setup as I have at home).