The Samsung 245B uses a 6-bit TN LCD panel which can only produce 262k of actual colors. Through a process called dithering the remaining 16 million are created by blending some of the 262k colors. TN panels general have low response times and are inexpensive, but that's about all that's good about them.
The Dell uses an 8-bit S-PVA panel that can truly create 16.7 million colors.
I actually just purchased the dell 24" and received it last week. I've watched a lot of movies on it and done the normal pc things as well. I must say it looks great and the on screen menus are good IMO. Just make sure you get it on sale. Dell puts it on sale about once per month. Otherwise you will overpay ~$100.
The 27" inch monitor has the same resolution the 24" gets..
the two works on 1920X1080 so I guess the pixels are larger on the 27" monitor. so you should think what you are looking for ? a bigger screen or a greater resolution?
the T260 doesn't support this resolution, only the t260HD support this resolution .
and I think you should go and see for yourself the Dell monitor.
its just different, go and see for yourself.