Say you want to rank your site for 10 to 15 keywords, some of them long tail. The homepage of your site has a PR of 2. Do you try to fit all of the keywords on your homepage? What about in the title? I recall changing the keywords of my website's title and seeing huge serp movement, so that tells me it's very important. But I can't fit all 10 keywords in the title, that looks ridiculous. It might also look ridiculous to have all of them on the homepage as well. So do you try to fit them all on the homepage or do you spread them out on different pages? If so, those different pages don't have the PR of 2 so how effective could it be?