Acer make possibly the best 24" monitor in terms of specifications when they released it with the predator model.
the only problem is, its orange and ive heard it performs well.
i used to sell the T220 and the T240/HD models, they look pretty good and for the price verses the specs you'll find them amongst the highest rated.
though sometimes they can look a little pale in comparison to lesser specc'ed monitors in terms of colours.
as for worth the extra money, depends really lol they look practically identical side to side bar the rose black colouring which is basically just a tinge of red aside from the response rate which unless you play games where that might count such as FPS games or fast action movies etc to make sure things dont ghost then theres not much need to spend the extra IMO.
i play source on a 6ms monitor/television doesnt really help me play better or worse and i dont see any visible different from 2ms to 8 but some people believe it does make the world of difference.
- acer Play.com (UK) : Acer G24 OID 24" Widescreen TFT Monitor : Computing - Free Delivery
tbh the rest of acers stuff in my experience bar this has been kind of crappy and poorly built but they did good with this one
HP make fantastic looking monitors and the colours look pretty nice but you pay alot for the name and the specs are never too fantastic, dont know how they get them to look so good :P easy on the eyes