You also might want to consider some in camera image stabilization and some fast glass.

You can get a Pentax 100D Super and some used 50mm 1.X glass on ebay for under $500. If you wanted the kit lens you could do the same for $550 but I recommend upgrading and get the 16-45 instead of the 18-55. It's a better lens though nothing to seriously wrong with the 18-55.

There are other in camera IS brands, but I can't think of them.