I don't know about shops in the UK. I found one, but you might want to search for monitors elsewhere too, to get lower prices.
From what I see, the LG IPS23*** (asterix indicate that there are multiple models with different names, but the only the last 3 numbers differ) series monitors are available for that budget. IPS panels usually have much better colors, but they have worse black levels in cheaper panels like these. They also have very very good viewing angles, so no vertical contrast shift like the usual LCD TN panel. Something to consider, since this is just for browsing and movie watching and light gaming.
If you don't want to go there for some reason, you can also go with pretty much any asus monitor. They are all decent for their price. The best manufacturer in the lower end of monitors, quite.
(this is also an IPS monitor by the way, though most asus monitors aren't)
I'd quite recommend IPS monitors for general browsing, they are more pleasant in many ways. Higher color fidelity and less dithering (google dithering if you don't know what it is in display terms). They are less straining to look at, I say. Just be aware of them having not ideal black levels (though most people would most likely not even realize this before being told), mainly due to IPS glow (youtube IPS glow. Those are way exaggerated because the cameras pick up that easily, but yes, it's still actually visible on IPS monitors in this price range)