We are about to change domain names to a fresh domain (I could list the reasons, but it would take 3 pages of descriptions). We have about 75 review sites, about 600 pages, and have used a lot of sub-domains in the past but have had issues with Google on PPC and Natural Rankings, thus the decision to "start fresh". All of our content is unique to us and the site is relatively well optimized.

So while we have good, not great, natural search positions, I do not want to lose them when we switch. If we use 301 redirects from the old domain pages to the new domain pages, will our PR and listings "transfer" over or are we going to get sand boxed and lose everything?

Any suggestions to make sure we avoid getting sand boxed while maintaining what we have?

Thanks ahead of time!

Arthur