what is the best point and shoot camera for available light pictures?

Cameras that work well in low-light, without flash would have these features: high ISO settings (800 or higher) and image stabilization. High ISO means the camera's image sensor is able to get an exposure with less light. Image stabilization reduces the effect of camera shake, thereby allowing a longer shutter speed.

Just because a camera has high ISO doesn't mean it will take a good picture at that setting. Look for reviews indicating low "image noise". And actually, all other things being the same, a lower resolution (megapixel) camera may be better, because the image sensors are mostly the same size. Noise is affected by how close the individual sensors (pixels) are to each other.

Putting this all together, I would recommend the Fuji F30 which has gotten praise from a lot of users. The Olympus FE-180 is new, and while less expensive and probably a fine camera, may not be the best bet for your needs.