Eyes are getting sore...time for new monitor (help needed)

[okayplayer]

I have been using my Dell Inspiron 6000 with WUXGA screen to 4table for the last few months, and lately my eyes are getting sore/tired after about 4 to 5hrs (I play 8hrs). I just recently switched the res. to 1600x1200 and that seemed to help a little, but they still get sore. Now, I know that everyone will probably say to get a 2001FP, but I had some questions:

I would prefer to use it on my desktop (Dell 4700), which has 1280x1024 resolution, does this matter? I want the tables to be bigger (ie, the size that they are on my desktop rather than my laptop), will the 2001FP do this?

Is this sufficient for 4tables with no overlap?

And finally, what price is good/reasonable?

(sorry for another monitor post)