|"I want a monitor which puts least strain on the eye and is best suited to my needs (as a computer science person)"|
All quality monitors these days are good regarding eye strain.
If that's the most important thing to you, make some choices then look at as many models as you can locally, preferably where you can watch them side by side, to see which one looks the best to you. If you're a gamer, and/or if how good fast moving video looks is important to you, watch a bank of monitors side by side while the same DVD movie is playing on all of them in store.
So far, Samsung monitors look the best to me, regardless of the specs. A 60Hz technology Samsung monitor often looks as good as some other brands 120hz technology model.
Keep in mind all LCD and Plasma monitors have an "Optimal" or "Native" resolution at which they look best set to, and all other resolutions will not look as good (CRT monitors do not have that restriction to anywhere near the same degree but of course they're pretty well dead as a new product) - you would have to be satisfied with what they look like in that resolution - the size of the icons, text, etc. One difference between good quality monitors and average or less quality monitors is the former always look better in other resolutions that the latter do.