5:4 vs WS, contrast ratio, decisions.

Im considering finally making the jump from CRT to TFT and really need some help deciding exactly what I need.

Right now im using a 19" LG Flatron T910. Its great, I love the definition, colour etc and im a bit wary of the difference in quality when moving to a tft BUT i'd like to get rid of the crt's bulkiness.

5:4 or widescreen?
Display time, 5ms or 8ms?
Contrast, is 700:1 fine?

So, two monitors ive come across so far.
LG 1919s, 1280x1024, 8ms, >> 1400:1 <<, cant find brightness, VGA (HD-15)
or
Belinea 1925S1W, 1400x900, 5ms, 850:1, 350cd/m2, analogue

16:10 could be good for gaming but i also do some 3d modelling, image editing and coding. I think the biggest decision is whether 5ms is better than 1400:1 (and is this DFC thing 2x as good?).