Concur gab20 on visual effects - But you could go for an attidue adj.
(1) some can see flicker at 60 hz (florecent tubes use to give some a headeach
(2) scan rate can have the same effect as # of colors displayed - You may not be able to see the differnce between adjacent shades, but overall the picture looks better
(3) the 60 Hz panel refresh was adapted do to the Response times of the older panels - they could not handle a higher rate. Theoritically a 5ms reponse time should handle 250 Hz (1/2 0f 1/5 x 10 to neg3) - never happen GI
(4) the below advertizes vertical Refresh Rate 56~75Hz BUT not sure GPU card will allow increasing (Have 4870 w/512meg)
(5) No way in H double LL will you find one cheap. The below Monitor is whate I have and it was $420.
As previously indicaded some 1080P HDTVs have a 120 Hz refresh rate _ But to get tru 120 Hz, the card has to be able to send it. 1080 P data rate at 120 is much greater than 525 lines @ 120 Hz.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824001280
Brightness 300 cd/m2
Contrast Ratio DC 10000:1(1000:1)
Response Time 5ms
Horizontal Refresh Rate 30~81kHz
Vertical Refresh Rate 56~75Hz
Edited - added
Please forgive spelling - trying to get out of here (Work) and get home