I use
- DxO for RAW conversion and distortion corrections,
- Lightroom 2.3 for cataloguing, white balance and exposure,
- PS Elements 6 for area corrections and layers,
- The Panorama Factory for panorama assembly, and
- Photomatix for high dynamic range images.
LR and Aperture for Macs are by far the best organizing software from all I have read.
Please note that I have an extensive computer background, and am basically lazy when it comes to "darkroom" work. I detest it, but recognize that post processing is a necessary evil. I sprang for what seems the best I could find at the time. I am not dissatisfied with the software I use, but definitely some could use more speed (DxO particularly!) and others nicer interfaces.