Use Capture One, you can get learning tools by just typing this into the net and they have a Capture One university for advanced learning as it keeps being progressed and upgraded. Capture One is much better than the others. Use capture for the big moves and fine tune in Photoshop. I believe Michael Reichmann, Tim Wolcott, and others do this. JP
Remember if its in print its usually out of date since the speed at which software gets updated and fixed. Not to say you have to always be at the latest greatest, but get something that really works and does what you want it to do.