I never got into this site to make money out of BH but more to promote my own site. Had a great conversation with a guy last night who has a few blogs he is bored with and was letting the domains lapse. I have checked the PR on them and two are PR7 blogs, aged domains. Now, I have proposed to him that I take them off his hands and pay his upcoming registration fees for hosting etc, If I was to put links on the PR7 homepage how much should I be asking? And will they make any real difference to SEO ?