Hi Kathye - that is definitely a good deal :) and when 8 comes out, you'll be able to get that at a good discount as well.
I love C7Pro compared to the old versions - content works much better than before, either loaded directly from your runtime directory, or imported from DazStudio (which has dynamic clothing now).
There have been so many improvements there are too many to list here, but for $48 it's definitely worth it. My favorite feature in C7Pro is the dynamic hair - it's so versatile and very realistic once you get the hang of it. There is also 3d painting, including layers for photoshop, displacement, bump, alpha, etc.

Here is a link to a video I did testing the Daz Dynamic Clothing imported to Carrara, including a Dynamic Hair simulation as well :) 

http://www.youtube.com/watch?v=8SXdHqAv7HM

Hope this helps :)