The Dell 2408WFP would be my choice. It may be the most expensive of the three that you listed, but with good reasons.
Many LCD monitors (including the T240HD and V2400W) are built around an LCD panel using TN technology. Two good things are:
1) inexpensive to manufacture so monitors are less expensive
2) fast response time for gamers.
What bad about TN panel tech?
1) Viewing angles, color can shift simply moving your head. The top of the monitor can seem darker than the rest of the monitor. I am currently looking at a monitor that uses a TN panel.
2) Poor color accuracy for professional use, but more importantly for some causal users it can create a little bit of color banding and image artifacts when there are subtle color changes like in a dimly lit movie scene. This is due to something called dithering. A TN panel can only create 256k colors, by using dithering those colors can be blended to create 16.7m according to the manufacturer.
3) Black levels are not particularly good and can lead to color banding. For example, on the current monitor I am using I cannot distinguish Black 0 thru Black 5, but Black 6 hits me like a brick. Black 0 thru Black 255 represents actual black (Black 0), pure white (Black 255) and all the shades of gray in between (Black 1 - Black 254).
4) Backlight uniformity. Not exactly sure if it due to TN panel or lower manufacturing standards to keep prices low, but TN panels tends to have more issues with backlight bleeding than any other LCD panel tech.
Basically the backlight (florescent lamps) is always on and it is up to the LCD panel to block that light from shining through to display black. All LCD monitors have some level of backlight bleeding, but TN panels seems to have the most. Worse, backlighting can look like patches all over the screen.
In most situations backlighting for the casual user should be an issue, but it can become distracting when watching dark scenes in a movie or playing games in dimly lit environments.
The Dell 2408WFP uses a S-PVA panel which can actually produce all 16.7m colors so issues with color banding and image artifacts should rarely appear. It is more expensive because the panel cost more to manufacture and the fastest listed response time is 6ms.
24" LCD monitors not using a TN panel starts at over $550 when not on sale. The Dell 2408 probably sells for around $675 excluding and discount, sale, or rebate.
Colors will shift on any LCD monitor because it is a limitation of the technology. But TN panels shift the most and does occur quite easily. That's why any monitor with S-PVA panel tech will have a viewing angle of 178. I believe Dell lists that as "89/89"
and i head 16:9 monitors are way better than 16:10 when it comes to watching HD movies and Play games, is it so ? I think i hav been puttin ma search in a wrong path all this while. Please help me out !!