Marks are good and so are the ones by Phil on Daz's site called Learning Carrara and Advanced Carrara Techniques (I have both, for the latter do a search learning carrara on daz's sales portion).  Youtube has some like from Cripman, DimensionNT, Age of Armour, (some of Marks and Phils have some of the first sets of the lessons online for free).  Just seach carrara tutorial on youtube and that should bring lots of them up.  Carrara Lounge which morphed into Carrara Cafe and is in cooperation with Daz has some good tutorials and links to them as well.

 

There are more but I am having to run out the door, I hope this helps.  Also a majority of the older docs are still applicable!