No real need for CCE with DVDRebuilder. The HC encoder that is included is very good quality, and some would say better than the two main commercial encoders that can be used with DVDReBuilder. It isn't as fast as CCE though.
DVDFab HD Decrypter is free to use, and will continue to work even after the 30 day trial for the main section of DVDFab expires. It is still being updated.
ImgBurn is a free program that many of us use for burning video. You should look through the guides at their forum. www.imgburn.com