I run a press release service, and I distribute articles to thousands of sites. I cannot promise you the PR4+, but I can say you will not be saddened by the sheer quantity of sites we release to. If you want a steal of a price, I am listing a top notch service. I will create a ~500 word custom and unique press release with 2 to 4 links in the text. After we submit to our thousand plus list of journalists, news sites, rss feeds, et cetera I will choose two published urls and bookmark them with at least 200 social bookmarks. I will then run those bookmarks and all of the returned links through my professional Linklicious account for indexing.
The publishing of the Press Releases will be finishing by day 10, but the indexing will continue for about another 3 weeks.