I have an opportunity to buy a used LCD monitor for my Mac. It was a high-end unit, but it's a little old. Most specs are on par with decent new ones. (It's a TFT with 24-bit color, 250 nit brightness, 600: contrast, decent viewing angles and higher resolution than most of its size) but the response time is 25 milliseconds. Will that be a problem? I generally don't play computer games, but I'd at least want to be able to watch normal DVDs and other video (maybe not action movies) on it.