Also, the really cheap calibrators are a total waste of space.
And if you need one, I can always lend you mine for a day or three.
There's no easy answer with monitors. You really need to spend around £300 to start getting reasonable-but-not-great colour at a good resolution.
For comparison, the ones used by colour professionals cost £1500 and upwards for a 19". £3000 for a 21" wouldn't be unusual.
Yikes.
300 I can just about stretch to but I can't justify super pro status ones. I need to get a new external hard drive too so I thought about pushing for a monitor as well. I've got to spend the money at some point on this, and my expenses have just come through so there's a bit of slack in my finances this month.
Once my thesis amendments are sorted I'm setting up my light table so I want a decent screen to work with, especially on macro stuff. Ad astra per aspera
Dells have a surprisingly good reputation. The 2208WFP is £258 inc VAT, and is 22" at 1680 x 1050.
There's a cheaper 22" but the colours on that will be mediocre.
The HP w2408h has good colour at 24" for £300 or so.