I love Canon.
I've got two. My point & shoot is several years old and they don't make it anymore, but I think that the price for the newer/comparable models is under $200. I've got an A75. It takes GREAT pictures.
I think that the A520 or A530 would be somewhat comparable (actually, higher megapixel - so even better than my older A75).
Amazon has the A530 for about $170 and the A520 for about $150 (the A530 has is 5Mp and the A520 is 4 Mp - I think the extra Mp for $20 is worth it). Both allow for some manual/customized shots - there is a "night scene" which helps with nightime shots, and even a "fireworks" mode that sets the camera to the proper settings for getting good fireworks shots. Though with that mode, I find having a tripod provides the best results, second best would be laying on the ground and holding the camera to your face (using the view finder instead of the LCD screen) - so that your body is the tripod. Otherwise, they come out a bit blurry.