I currently own a samsung syncmaster 226cw 22" with 2 ms response time and am very happy with it. The response times/refresh rates on those 2 monitors you listed are 5 ms which isn't all that great considering lcds/tfts are now up to 1ms = 120hz = ideal viewing for your eyes. A lot ofgamers are still using CRTs at 120hz in games as its the gold standard with a very noticeable smoothness increase with frames displaying perfectly..better fluidity in general.
My monitor runs at 60hz/2ms and has a viewing angle comparable to that of a CRT and very very wide color gamut, I've yet to experience ghosting or any image blur from it very likely due to the 2ms response time but with 5ms you COULD get those negative effects. I think you need a dual link DVI cable to achieve 120hz on any monitor that has a 1ms resposne time and beware as some lcds listed as 120hz arent really 120hz after all...they basically double up the 60hz.
I'm no expert at all on monitors particularly LCDs but i would defo hold onto my money in favour of a display with a lower response time.
