Monitor choice help

hi to all...
i want to buy a new monitor but i don't know what is best (speaking of specifications) for gaming experience (quality image) and to spend some hours programing (thinking of what is best for my eyes), so i came here asking for help, and also my budget is ~200€ (~265$ or ~170£) and i need a monitor with 22" or 23" (need space on the desktop to program)...
i found these monitors, what do you think?

---Samsung 2233RZ 22"---
Contrast Ratio - MEGA DCR (Static CR 1000:1)
Response time - 2ms (G2G)

---Samsung BX2335 23"---
Contrast Ratio - DC 20000:1(1000:1)
Response time - 2D:5ms / 3D:3ms (GTG)

---Asus VH242H 23.6"---
Contrast Ratio - 20000:1 (ASCR)
Response Time - 5ms

---Asus VH242T 23.6" or Asus VH232T 23"--- same specifications as VH242H but only have DVI-D/D-Sub input and are a bit cheaper (don't know wich is better for image, HDMI or DVI)

---LG W2343T 23"---
Contrast Ratio - 3000:1 (DFC)
Response Time - 5ms

The Prices:
Samsung 2233RZ 22" - 225€ (301$ or 191£)
Samsung BX2335 23" - 200€ (268$ or 169£)
Asus VH242H 23.6" --- 208€ (278$ or 176£)
Asus VH242T 23.6" --- 197€ (264$ or 167£)
Asus VH232T 23" ----- 181€ (242$ or 153£)
LG W2343T 23" ------- 183€ (245$ or 155£)

thanks in advanced for attemtion and help...