I think £150 pounds is a bit of a squeeze as it puts the Dell u2312hm out of reach.
The Iiyama ProLite X2377HDS features an IPS-panel and is within your budget however. OC UK currently has the monitor on its weekly sale btw.

The SA350H is an LCD.Hi every one i want to sell this monitor and get LCD.
If you don't want a TN-panel you're left with either some VA or IPS variant. TN and IPS monitors are both available with CCFL and LED backlight, not to mention LED backlighted monitors don't really have any major disadvantages besides a more limited color gamut (and even that isn't necessarily true.. not to mention considering your budget something that's completely irrelevant).I am not happy with TN as i think it not that great.
--
Oh and it doesnt have to be IPS. But for sure i hate LED screens...