This is the only screen that matched these criteria and quite frankly the picture quality is just amazing. I also have a Samsung 24 "full HD, the quality is completely similar (and you know the point at which Samsung dominates the display market in terms of quality!).
The only "problem" I'm not sure that really it's a 2ms ... or maybe it is a 2ms gray to gray and 5ms for the rest (that is often the standard): for my part no reactivity problem while I'm more of a gamer genre (Battlefield 3, LoL, Starcraft etc).
The speakers are quite sufficient if you're like me about 1m of the screen. Note that the default volume is 50% and I was like "ouuuaaaa but the sound is rotten!" but in fact in the meantime I found the button to adjust the sound and happiness there! And as I said at 1m my screen I did not need to put 100% (it breaks me my fragile ears ^^), a small 70-80% enough for me.
A buy eyes closed!