I've got a Canon SD100, which is an alright camera... it has adjustable settings for white balance, ISO speed, and a couple of others. Seems like it's possible to grab some good shots, but the 'auto' setting just isn't cutting it.

Any base recommendations for how to adjust these for low-light (parking lot at night for example) and other situations... maybe moving shots as well?

If anyone has any recommendations on where to set some of these levels, please inform.