I know about dynamic contrast ratios, theres a monitor on OCUK that boasts 50,000:1 contrast ratio, but they never show the 'true' contrast ratio in the specs. By all means go with a budget monitor, and you probably won't ever know the difference unless you put them side by side. But seeing as you aren't buying it Trigger, I'd stay away from 24" monitors that cost £150, unless it has good reviews.