Viewing angles for LCDs depend on the panel type. Here's a nice list that explains the
difference between the different panel types. In general, cheaper LCDs use TN panels, and the more expensive ones use S-PVA. S-PVA have better colors and wider viewing angles but slower response times.
Samsung and Dell are my favorite LCDs. Aesthetically, I like the look of Dells, but I prefer the color reproduction of Samsung displays. Please note, that this is just a personal preference. Both are great.
willravel linked to the Samsung 245BW which is a TN panel. That'd explain the cheaper price and complaints about viewing angles. Keep in mind that viewing angles refer to both horizontal and vertical directions.
The Dell UltraSharp 2407 WFP-HC is a S-PVA panel, so it costs a couple hundred dollars more. You get better colors and a wider viewing angle. It also has a stand that allows you to pivot between portrait/landscape, which is convenient if you write documents a lot. As far as movies and video games are concerned, they should look fine, but they're not going to look as good as they would on an HDTV.
Personally, I have a
Samsung 244t which is a S-PVA panel, and I don't have an issues with viewing angles. Games are awesome on a 24 inch screen. I also have a hd tv tuner, so I can watch HD shows on my computer. It looks amazing as well, but it's not as jaw dropping as the picture you'd get if you spent over a grand on an HDTV.
Hope that helps.