To answer your question yes there are. I am into heavier bands like Mastodon and High on Fire,bith are new,and both are as good as anything I've ever been into. There are some good things coming up concert wise,and there are a group of friends and I who have been enjoying a resurgence of interesting heavy metal acts(not glam metal like Cinderella).
I saw a 4 band show at a little club last night and all the bands were entertaining,the last one being a band called Shrinebuilder with Wino from St Vitus on lead guitar,Scott Kelly of Neurosis on rhythm,Al Cisneros of Sleep on bass,and Dale from the Melvins on drums. It was as good as anything I have ever seen. In fact it was Epic!
Down is another great band with Phil from Pantera on vocals,Pepper from COC and Kirk from Crowbar guitars,and Jimmy Bower on drums from Eye Hate God,they are freakin great,and are coming out with a new album.
Soundgarden is reuniting for a tour.
I thought the Darkness was a lot of fun. If you are looking to the radio to find good music or MTV you will never find it. Go to Youtube,or better yet,a record store.
Now as for Rock,you are right,it is pretty well dominated by OLD hasbeen rockers charging way too much to see them live and there is a lack of musicianship.But you said Cinderella so maybe Chickenfoot will get you off. Not I.