Full-timing!!! Awesome!! Congratulations on that decision. I can't really answer your questions on those modela other than that I've been in a few Cedar Creek models and the seem exceptional.
I only see the following models in the '08 Cedar Creek lineup - 37CKQS and 37RDQS. Both look well laid out for full-timing. I would think the biggest decision for full time use is the tow vehicle. These are BIG units.
You might check on-line for magazines dedicated to RVs and look for articles on Cedar Creek models and similar truck-trailer road test articles to pick up some good info. Here's a pretty good start: http://www.rvreviews.com/masterResul...vel%20trailers
Good luck and keep us all updated, k?