If you want the simplest system to use for Canon RAW files then download the Canon converter DPP from Canon's website. The big advantage that DPP has over ALL other conversion software is it's ability to read all of the Canon in camera settings. This means that the initial default conversion should be identical to that done by the in camera processing. If your goal is to just correct for the fact that you did not use in camera JPEG it's the perfect answer. Another advantage of this is that it gives you the opportunity to compare the differences that changing the in camera picture styles would make, all on a single exposure. Changing the picture style is very simple in DPP. DPP can also help you with understanding how things like changing saturation etc will affect the finished image, but with a simple method of reverting to the original settings.
Although in it's way DPP is a very good program, it is limited in many ways, especially compared to other RAW converters, such as found in ACR (bundled with PS/PS Elements and built into LR) or Phase Ones, Capture 1 Pro. These offer different options, and both of these seem to be much better at dealing with highlight data than DPP (Often called Highlight recovery, but you are dealing with data that is actually there). The thing with these applications is that they tend to have default settings that are very bland, relying on the user having some idea of what they are doing.
Alan