To be honest, anyone can take a good image with some patience and a decent camera. I have been shooting with friends who had a Drebel and a 70-300 that got better images than me!
That fox was shot with a original 1D and a 100-400IS at around 250mm...I think. I had a 1Ds / 600F4IS with me, but was getting head shots for the client with that. I sold my 1Ds/600F4IS last fall due to a very expensive situation that came up