I would have thought that Newquay will still be busy as people, of course, live there all year round but I think that one of the Cornwall Destination Experts would know better than I do as I really can only comment on St Ives.
I am sure if you are able to wait a little bit longer than you have done then you will get a reply. I think everyone may have been a wee bit busy with other things. There isn't the same sense of urgency about things in Cornwall, life is less frantic, that's not to say that things aren't efficient though. As it won't be as busy as during the peak season, you will have plenty of accommodation to choose from even if you book quite late. Just check whether the dates you have in mind clash with half term though because, if they do, it could be very busy indeed but not in the way you might want.
Suzi
Edited: 13 September 2011, 3:58