That NEC seems to be a bit out of most people's budget, to be honest. I have heard it delivers on the price though.
If I had £300, I'd try grab a decent VA panel (like the Hyundai 240D-PVA). You might go over-budget by a tenner or so, but it's definitely something to consider if you're avoiding the unrealistic, "dithered" colours inherent in most 6-bit colour TN panels.