"Can you play the game in fullscreen or is the letterbox view not removable?"
"4:3 or widescreen are aspect ratios you can select. I personally play in
widescreen because my monitor is physically a widescreen monitor (1600 x
1024). Most people at Valve play with 4:3 aspect ratio because they have
traditional CRT monitors with 4:3 as their physical aspect ratio. You could
play normal on a widescreen monitor and vice versa - it will just look
funny. On top of that you have whatever monitor scaling you are using if
you have an LCD or plasma display. I run hl2.exe -width 1600 -height 1024
with anisotropic filtering and 2X AA with a Radeon 9800 128 MB and a 3 Ghz
P-IV with no monitor scaling."
"you said you have a widescreen monitor (1600 x 1024), what monitor is it? (make and model) and are you happy with it?"
"Apple 22" Cinema Display. I keep waiting for a better LCD monitor to come along, and there hasn't been one (except the 23" Apple LCD panel, but not worth the upgrade hassle). There was too much weirdness with the Samsung 24" panel DVI support."