For those of you lucky enough to have Nikon cameras (just kidding Gavin, et all), you are probably familar with Nikon’s intuitive image editing software, Capture NX. 
It’s hard to explain, in written form, what makes Capture NX different from Photoshop. However, I will give it a shot.
There is no need for multiple layers, as you work directly on one layer and control spots on the image with specific control points. Okay, so that doesn’t make a whole lot of sense, does it? Just try it out. And – yes – Canon users can use the software, you just won’t be able to edit your RAW images.
Nikon has released several Capture step-by-step guides as downloadable documents. They are very easy to understand and walk you through the entire process and the best part is – they are FREE!
Witty farewell goes here,
Todd