I was looking at the sites and some of them have decent PR links pointing at internal pages. How do you handle this to retain those incoming links? Do you try to rebuild the same pages that have links pointing at them, or do do just do a 301 redirect to the homepage? I really don't know much about using a 301 redirect.
Also if a person wanted to wait awhile before building out one of these domains could I just 301 redirect the site to my main site temporarily until I'm ready to build it out? Or would it be better to just wait until I have the site build out then link to my main site?