[dosserj]

I use a combination of Photoshop/Fireworks/Adobe Bridge for most of my editing. If you are just looking to improve or enhance photos, you can look into Aperture for Macs. I have a trial version now and it seems decent. However, it does not have the "chopping" tools like photoshop. So if you want to insert a hot girl next to your car, you might want to spring for photoshop.