Sorry, but I have to disagree w/ you guys and gals regarding the 50mm f/1.8 II, I agree that it is sharper and better then the kit lens but by all means, it is definitely NOT a fast lens, especially when it comes in low light, low light here represents indoor and not pitch dark or something, without flash, this lens will crawl searching for something to focus on and it takes time to focus which usually mean harder to capture "The Moment", and if you do capture "The Moment" the tendency your camera might focus on the wrong object is there also and to make matter worse, without full time manual focus, it makes it harder to get the part of the image (like a person eyes) to be sharper cause you must switch to manual mode to do that fine tuning which makes this very unsuitable for events where people are moving around and you dont really have the luxury of fine tuning the shot.
By all means, the 50 f/1.8 is not a bad lens considering its price tag but definitely, if you got the extra bucks, go and get the 50 f/1.4 instead, you will be much happier with its performance. (I used the 50 f/1.4 before and now sort of regret not getting it, but cannot do anything about it considering my really tight budget)